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Finding the Fourth Proportional to 7,156.32, 10,739.04 and 6,615.24

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Solution

The fourth proportional to 7,156.32, 10,739.04 and 6,615.24 is: 9,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.32 : 10,739.04 = 6,615.24 : x
  2. Step 2: Convert to fraction form
    7,156.32/10,739.04 = 6,615.24/x
  3. Step 3: Cross multiply
    7,156.32x = 10,739.04 × 6,615.24
  4. Step 4: Simplify right side
    7,156.32x = 71,041,326.97
  5. Step 5: Solve for x
    x = 71,041,326.97/7,156.32
  6. Step 6: Final answer
    x = 9,927.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.