Home / 15,981.18-22,052.91-9,175.98

Finding the Fourth Proportional to 15,981.18, 22,052.91 and 9,175.98

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Solution

The fourth proportional to 15,981.18, 22,052.91 and 9,175.98 is: 12,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.18 : 22,052.91 = 9,175.98 : x
  2. Step 2: Convert to fraction form
    15,981.18/22,052.91 = 9,175.98/x
  3. Step 3: Cross multiply
    15,981.18x = 22,052.91 × 9,175.98
  4. Step 4: Simplify right side
    15,981.18x = 202,357,061.10
  5. Step 5: Solve for x
    x = 202,357,061.10/15,981.18
  6. Step 6: Final answer
    x = 12,662.21

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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.