Home / 12,686,895.81-17,507,933.11-6,885,677.55

Finding the Fourth Proportional to 12,686,895.81, 17,507,933.11 and 6,885,677.55

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Solution

The fourth proportional to 12,686,895.81, 17,507,933.11 and 6,885,677.55 is: 9,502,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,895.81 : 17,507,933.11 = 6,885,677.55 : x
  2. Step 2: Convert to fraction form
    12,686,895.81/17,507,933.11 = 6,885,677.55/x
  3. Step 3: Cross multiply
    12,686,895.81x = 17,507,933.11 × 6,885,677.55
  4. Step 4: Simplify right side
    12,686,895.81x = 120,553,981,962,428.67
  5. Step 5: Solve for x
    x = 120,553,981,962,428.67/12,686,895.81
  6. Step 6: Final answer
    x = 9,502,244.19

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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.