Home / 9,864.79-13,611.18-5,885.13

Finding the Fourth Proportional to 9,864.79, 13,611.18 and 5,885.13

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Solution

The fourth proportional to 9,864.79, 13,611.18 and 5,885.13 is: 8,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.79 : 13,611.18 = 5,885.13 : x
  2. Step 2: Convert to fraction form
    9,864.79/13,611.18 = 5,885.13/x
  3. Step 3: Cross multiply
    9,864.79x = 13,611.18 × 5,885.13
  4. Step 4: Simplify right side
    9,864.79x = 80,103,563.75
  5. Step 5: Solve for x
    x = 80,103,563.75/9,864.79
  6. Step 6: Final answer
    x = 8,120.15

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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.