Home / 13,869.59-19,140.10-7,581.96

Finding the Fourth Proportional to 13,869.59, 19,140.10 and 7,581.96

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Solution

The fourth proportional to 13,869.59, 19,140.10 and 7,581.96 is: 10,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.59 : 19,140.10 = 7,581.96 : x
  2. Step 2: Convert to fraction form
    13,869.59/19,140.10 = 7,581.96/x
  3. Step 3: Cross multiply
    13,869.59x = 19,140.10 × 7,581.96
  4. Step 4: Simplify right side
    13,869.59x = 145,119,434.69
  5. Step 5: Solve for x
    x = 145,119,434.69/13,869.59
  6. Step 6: Final answer
    x = 10,463.14

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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.