Home / 15,247.63-21,042.14-8,534.42

Finding the Fourth Proportional to 15,247.63, 21,042.14 and 8,534.42

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Solution

The fourth proportional to 15,247.63, 21,042.14 and 8,534.42 is: 11,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.63 : 21,042.14 = 8,534.42 : x
  2. Step 2: Convert to fraction form
    15,247.63/21,042.14 = 8,534.42/x
  3. Step 3: Cross multiply
    15,247.63x = 21,042.14 × 8,534.42
  4. Step 4: Simplify right side
    15,247.63x = 179,582,312.58
  5. Step 5: Solve for x
    x = 179,582,312.58/15,247.63
  6. Step 6: Final answer
    x = 11,777.72

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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.