Home / 18,712.50-25,820.91-10,753.62

Finding the Fourth Proportional to 18,712.50, 25,820.91 and 10,753.62

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Solution

The fourth proportional to 18,712.50, 25,820.91 and 10,753.62 is: 14,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.50 : 25,820.91 = 10,753.62 : x
  2. Step 2: Convert to fraction form
    18,712.50/25,820.91 = 10,753.62/x
  3. Step 3: Cross multiply
    18,712.50x = 25,820.91 × 10,753.62
  4. Step 4: Simplify right side
    18,712.50x = 277,668,254.19
  5. Step 5: Solve for x
    x = 277,668,254.19/18,712.50
  6. Step 6: Final answer
    x = 14,838.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.