Home / 15,972.10-22,041.47-9,261.63

Finding the Fourth Proportional to 15,972.10, 22,041.47 and 9,261.63

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Solution

The fourth proportional to 15,972.10, 22,041.47 and 9,261.63 is: 12,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.10 : 22,041.47 = 9,261.63 : x
  2. Step 2: Convert to fraction form
    15,972.10/22,041.47 = 9,261.63/x
  3. Step 3: Cross multiply
    15,972.10x = 22,041.47 × 9,261.63
  4. Step 4: Simplify right side
    15,972.10x = 204,139,962.95
  5. Step 5: Solve for x
    x = 204,139,962.95/15,972.10
  6. Step 6: Final answer
    x = 12,781.04

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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.