Home / 12,258.47-16,920.26-8,010.15

Finding the Fourth Proportional to 12,258.47, 16,920.26 and 8,010.15

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Solution

The fourth proportional to 12,258.47, 16,920.26 and 8,010.15 is: 11,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.47 : 16,920.26 = 8,010.15 : x
  2. Step 2: Convert to fraction form
    12,258.47/16,920.26 = 8,010.15/x
  3. Step 3: Cross multiply
    12,258.47x = 16,920.26 × 8,010.15
  4. Step 4: Simplify right side
    12,258.47x = 135,533,780.59
  5. Step 5: Solve for x
    x = 135,533,780.59/12,258.47
  6. Step 6: Final answer
    x = 11,056.34

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Double scale
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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.