Home / 13,056.74-18,010.76-8,335.70

Finding the Fourth Proportional to 13,056.74, 18,010.76 and 8,335.70

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Solution

The fourth proportional to 13,056.74, 18,010.76 and 8,335.70 is: 11,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.74 : 18,010.76 = 8,335.70 : x
  2. Step 2: Convert to fraction form
    13,056.74/18,010.76 = 8,335.70/x
  3. Step 3: Cross multiply
    13,056.74x = 18,010.76 × 8,335.70
  4. Step 4: Simplify right side
    13,056.74x = 150,132,292.13
  5. Step 5: Solve for x
    x = 150,132,292.13/13,056.74
  6. Step 6: Final answer
    x = 11,498.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.