Home / 15,581.67-21,503.54-10,272.66

Finding the Fourth Proportional to 15,581.67, 21,503.54 and 10,272.66

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Solution

The fourth proportional to 15,581.67, 21,503.54 and 10,272.66 is: 14,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.67 : 21,503.54 = 10,272.66 : x
  2. Step 2: Convert to fraction form
    15,581.67/21,503.54 = 10,272.66/x
  3. Step 3: Cross multiply
    15,581.67x = 21,503.54 × 10,272.66
  4. Step 4: Simplify right side
    15,581.67x = 220,898,503.85
  5. Step 5: Solve for x
    x = 220,898,503.85/15,581.67
  6. Step 6: Final answer
    x = 14,176.82

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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.