Home / 9,781.16-13,497.30-5,589.32

Finding the Fourth Proportional to 9,781.16, 13,497.30 and 5,589.32

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Solution

The fourth proportional to 9,781.16, 13,497.30 and 5,589.32 is: 7,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.16 : 13,497.30 = 5,589.32 : x
  2. Step 2: Convert to fraction form
    9,781.16/13,497.30 = 5,589.32/x
  3. Step 3: Cross multiply
    9,781.16x = 13,497.30 × 5,589.32
  4. Step 4: Simplify right side
    9,781.16x = 75,440,728.84
  5. Step 5: Solve for x
    x = 75,440,728.84/9,781.16
  6. Step 6: Final answer
    x = 7,712.86

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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.