Home / 9,017.20-12,440.40-5,660.16

Finding the Fourth Proportional to 9,017.20, 12,440.40 and 5,660.16

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Solution

The fourth proportional to 9,017.20, 12,440.40 and 5,660.16 is: 7,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.20 : 12,440.40 = 5,660.16 : x
  2. Step 2: Convert to fraction form
    9,017.20/12,440.40 = 5,660.16/x
  3. Step 3: Cross multiply
    9,017.20x = 12,440.40 × 5,660.16
  4. Step 4: Simplify right side
    9,017.20x = 70,414,654.46
  5. Step 5: Solve for x
    x = 70,414,654.46/9,017.20
  6. Step 6: Final answer
    x = 7,808.93

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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.