Home / 12,636.53-18,931.10-10,569.81

Finding the Fourth Proportional to 12,636.53, 18,931.10 and 10,569.81

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Solution

The fourth proportional to 12,636.53, 18,931.10 and 10,569.81 is: 15,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.53 : 18,931.10 = 10,569.81 : x
  2. Step 2: Convert to fraction form
    12,636.53/18,931.10 = 10,569.81/x
  3. Step 3: Cross multiply
    12,636.53x = 18,931.10 × 10,569.81
  4. Step 4: Simplify right side
    12,636.53x = 200,098,077.24
  5. Step 5: Solve for x
    x = 200,098,077.24/12,636.53
  6. Step 6: Final answer
    x = 15,834.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.