Home / 8,875.56-12,251.14-5,729.32

Finding the Fourth Proportional to 8,875.56, 12,251.14 and 5,729.32

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Solution

The fourth proportional to 8,875.56, 12,251.14 and 5,729.32 is: 7,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.56 : 12,251.14 = 5,729.32 : x
  2. Step 2: Convert to fraction form
    8,875.56/12,251.14 = 5,729.32/x
  3. Step 3: Cross multiply
    8,875.56x = 12,251.14 × 5,729.32
  4. Step 4: Simplify right side
    8,875.56x = 70,190,701.42
  5. Step 5: Solve for x
    x = 70,190,701.42/8,875.56
  6. Step 6: Final answer
    x = 7,908.31

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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.