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Finding the Fourth Proportional to 15,175.04, 20,941.08 and 8,888.40

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Solution

The fourth proportional to 15,175.04, 20,941.08 and 8,888.40 is: 12,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.04 : 20,941.08 = 8,888.40 : x
  2. Step 2: Convert to fraction form
    15,175.04/20,941.08 = 8,888.40/x
  3. Step 3: Cross multiply
    15,175.04x = 20,941.08 × 8,888.40
  4. Step 4: Simplify right side
    15,175.04x = 186,132,695.47
  5. Step 5: Solve for x
    x = 186,132,695.47/15,175.04
  6. Step 6: Final answer
    x = 12,265.71

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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.