Home / 13,124.79-19,691.15-4,690.19

Finding the Fourth Proportional to 13,124.79, 19,691.15 and 4,690.19

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Solution

The fourth proportional to 13,124.79, 19,691.15 and 4,690.19 is: 7,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.79 : 19,691.15 = 4,690.19 : x
  2. Step 2: Convert to fraction form
    13,124.79/19,691.15 = 4,690.19/x
  3. Step 3: Cross multiply
    13,124.79x = 19,691.15 × 4,690.19
  4. Step 4: Simplify right side
    13,124.79x = 92,355,136.36
  5. Step 5: Solve for x
    x = 92,355,136.36/13,124.79
  6. Step 6: Final answer
    x = 7,036.70

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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.