Home / 15,587.61-23,382.11-5,721.51

Finding the Fourth Proportional to 15,587.61, 23,382.11 and 5,721.51

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Solution

The fourth proportional to 15,587.61, 23,382.11 and 5,721.51 is: 8,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.61 : 23,382.11 = 5,721.51 : x
  2. Step 2: Convert to fraction form
    15,587.61/23,382.11 = 5,721.51/x
  3. Step 3: Cross multiply
    15,587.61x = 23,382.11 × 5,721.51
  4. Step 4: Simplify right side
    15,587.61x = 133,780,881.35
  5. Step 5: Solve for x
    x = 133,780,881.35/15,587.61
  6. Step 6: Final answer
    x = 8,582.51

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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.