Home / 15,561.42-21,449.65-10,523.80

Finding the Fourth Proportional to 15,561.42, 21,449.65 and 10,523.80

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Solution

The fourth proportional to 15,561.42, 21,449.65 and 10,523.80 is: 14,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.42 : 21,449.65 = 10,523.80 : x
  2. Step 2: Convert to fraction form
    15,561.42/21,449.65 = 10,523.80/x
  3. Step 3: Cross multiply
    15,561.42x = 21,449.65 × 10,523.80
  4. Step 4: Simplify right side
    15,561.42x = 225,731,826.67
  5. Step 5: Solve for x
    x = 225,731,826.67/15,561.42
  6. Step 6: Final answer
    x = 14,505.86

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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.