Home / 12,715,697.79-17,547,129.07-7,209,443.09

Finding the Fourth Proportional to 12,715,697.79, 17,547,129.07 and 7,209,443.09

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Solution

The fourth proportional to 12,715,697.79, 17,547,129.07 and 7,209,443.09 is: 9,948,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715,697.79 : 17,547,129.07 = 7,209,443.09 : x
  2. Step 2: Convert to fraction form
    12,715,697.79/17,547,129.07 = 7,209,443.09/x
  3. Step 3: Cross multiply
    12,715,697.79x = 17,547,129.07 × 7,209,443.09
  4. Step 4: Simplify right side
    12,715,697.79x = 126,505,028,390,744.36
  5. Step 5: Solve for x
    x = 126,505,028,390,744.36/12,715,697.79
  6. Step 6: Final answer
    x = 9,948,728.77

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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.