Home / 15,484.50-21,424.91-13,499.19

Finding the Fourth Proportional to 15,484.50, 21,424.91 and 13,499.19

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Solution

The fourth proportional to 15,484.50, 21,424.91 and 13,499.19 is: 18,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.50 : 21,424.91 = 13,499.19 : x
  2. Step 2: Convert to fraction form
    15,484.50/21,424.91 = 13,499.19/x
  3. Step 3: Cross multiply
    15,484.50x = 21,424.91 × 13,499.19
  4. Step 4: Simplify right side
    15,484.50x = 289,218,863.33
  5. Step 5: Solve for x
    x = 289,218,863.33/15,484.50
  6. Step 6: Final answer
    x = 18,677.96

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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.