Home / 9,349.12-12,901.56-5,157.28

Finding the Fourth Proportional to 9,349.12, 12,901.56 and 5,157.28

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Solution

The fourth proportional to 9,349.12, 12,901.56 and 5,157.28 is: 7,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.12 : 12,901.56 = 5,157.28 : x
  2. Step 2: Convert to fraction form
    9,349.12/12,901.56 = 5,157.28/x
  3. Step 3: Cross multiply
    9,349.12x = 12,901.56 × 5,157.28
  4. Step 4: Simplify right side
    9,349.12x = 66,536,957.36
  5. Step 5: Solve for x
    x = 66,536,957.36/9,349.12
  6. Step 6: Final answer
    x = 7,116.92

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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.