Home / 12,516,516.09-17,270,819.19-7,290,384.35

Finding the Fourth Proportional to 12,516,516.09, 17,270,819.19 and 7,290,384.35

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Solution

The fourth proportional to 12,516,516.09, 17,270,819.19 and 7,290,384.35 is: 10,059,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,516.09 : 17,270,819.19 = 7,290,384.35 : x
  2. Step 2: Convert to fraction form
    12,516,516.09/17,270,819.19 = 7,290,384.35/x
  3. Step 3: Cross multiply
    12,516,516.09x = 17,270,819.19 × 7,290,384.35
  4. Step 4: Simplify right side
    12,516,516.09x = 125,910,909,848,101.58
  5. Step 5: Solve for x
    x = 125,910,909,848,101.58/12,516,516.09
  6. Step 6: Final answer
    x = 10,059,581.19

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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.