Home / 15,943.68-22,002.21-8,870.09

Finding the Fourth Proportional to 15,943.68, 22,002.21 and 8,870.09

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Solution

The fourth proportional to 15,943.68, 22,002.21 and 8,870.09 is: 12,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.68 : 22,002.21 = 8,870.09 : x
  2. Step 2: Convert to fraction form
    15,943.68/22,002.21 = 8,870.09/x
  3. Step 3: Cross multiply
    15,943.68x = 22,002.21 × 8,870.09
  4. Step 4: Simplify right side
    15,943.68x = 195,161,472.89
  5. Step 5: Solve for x
    x = 195,161,472.89/15,943.68
  6. Step 6: Final answer
    x = 12,240.68

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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.