Home / 15,531.26-23,300.52-5,143

Finding the Fourth Proportional to 15,531.26, 23,300.52 and 5,143

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Solution

The fourth proportional to 15,531.26, 23,300.52 and 5,143 is: 7,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.26 : 23,300.52 = 5,143 : x
  2. Step 2: Convert to fraction form
    15,531.26/23,300.52 = 5,143/x
  3. Step 3: Cross multiply
    15,531.26x = 23,300.52 × 5,143
  4. Step 4: Simplify right side
    15,531.26x = 119,834,574.36
  5. Step 5: Solve for x
    x = 119,834,574.36/15,531.26
  6. Step 6: Final answer
    x = 7,715.70

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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.