Home / 12,808,786.97-17,676,545.05-7,007,434.13

Finding the Fourth Proportional to 12,808,786.97, 17,676,545.05 and 7,007,434.13

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Solution

The fourth proportional to 12,808,786.97, 17,676,545.05 and 7,007,434.13 is: 9,670,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808,786.97 : 17,676,545.05 = 7,007,434.13 : x
  2. Step 2: Convert to fraction form
    12,808,786.97/17,676,545.05 = 7,007,434.13/x
  3. Step 3: Cross multiply
    12,808,786.97x = 17,676,545.05 × 7,007,434.13
  4. Step 4: Simplify right side
    12,808,786.97x = 123,867,225,136,803.22
  5. Step 5: Solve for x
    x = 123,867,225,136,803.22/12,808,786.97
  6. Step 6: Final answer
    x = 9,670,488.35

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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.