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Finding the Fourth Proportional to 15,465.97, 21,343.04 and 8,751.46

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Solution

The fourth proportional to 15,465.97, 21,343.04 and 8,751.46 is: 12,077.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.97 : 21,343.04 = 8,751.46 : x
  2. Step 2: Convert to fraction form
    15,465.97/21,343.04 = 8,751.46/x
  3. Step 3: Cross multiply
    15,465.97x = 21,343.04 × 8,751.46
  4. Step 4: Simplify right side
    15,465.97x = 186,782,760.84
  5. Step 5: Solve for x
    x = 186,782,760.84/15,465.97
  6. Step 6: Final answer
    x = 12,077.02

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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.