Home / 13,125.29-19,691.90-4,690.69

Finding the Fourth Proportional to 13,125.29, 19,691.90 and 4,690.69

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Solution

The fourth proportional to 13,125.29, 19,691.90 and 4,690.69 is: 7,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.29 : 19,691.90 = 4,690.69 : x
  2. Step 2: Convert to fraction form
    13,125.29/19,691.90 = 4,690.69/x
  3. Step 3: Cross multiply
    13,125.29x = 19,691.90 × 4,690.69
  4. Step 4: Simplify right side
    13,125.29x = 92,368,598.41
  5. Step 5: Solve for x
    x = 92,368,598.41/13,125.29
  6. Step 6: Final answer
    x = 7,037.45

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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.