Home / 13,077.27-18,046.67-7,108.93

Finding the Fourth Proportional to 13,077.27, 18,046.67 and 7,108.93

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Solution

The fourth proportional to 13,077.27, 18,046.67 and 7,108.93 is: 9,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.27 : 18,046.67 = 7,108.93 : x
  2. Step 2: Convert to fraction form
    13,077.27/18,046.67 = 7,108.93/x
  3. Step 3: Cross multiply
    13,077.27x = 18,046.67 × 7,108.93
  4. Step 4: Simplify right side
    13,077.27x = 128,292,513.76
  5. Step 5: Solve for x
    x = 128,292,513.76/13,077.27
  6. Step 6: Final answer
    x = 9,810.34

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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.