Home / 15,225.32-21,010.50-8,510.96

Finding the Fourth Proportional to 15,225.32, 21,010.50 and 8,510.96

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Solution

The fourth proportional to 15,225.32, 21,010.50 and 8,510.96 is: 11,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.32 : 21,010.50 = 8,510.96 : x
  2. Step 2: Convert to fraction form
    15,225.32/21,010.50 = 8,510.96/x
  3. Step 3: Cross multiply
    15,225.32x = 21,010.50 × 8,510.96
  4. Step 4: Simplify right side
    15,225.32x = 178,819,525.08
  5. Step 5: Solve for x
    x = 178,819,525.08/15,225.32
  6. Step 6: Final answer
    x = 11,744.88

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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.