Home / 15,721.59-23,582.45-9,865.91

Finding the Fourth Proportional to 15,721.59, 23,582.45 and 9,865.91

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Solution

The fourth proportional to 15,721.59, 23,582.45 and 9,865.91 is: 14,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.59 : 23,582.45 = 9,865.91 : x
  2. Step 2: Convert to fraction form
    15,721.59/23,582.45 = 9,865.91/x
  3. Step 3: Cross multiply
    15,721.59x = 23,582.45 × 9,865.91
  4. Step 4: Simplify right side
    15,721.59x = 232,662,162.04
  5. Step 5: Solve for x
    x = 232,662,162.04/15,721.59
  6. Step 6: Final answer
    x = 14,798.90

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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.