Home / 9,864.30-13,611.50-5,615.92

Finding the Fourth Proportional to 9,864.30, 13,611.50 and 5,615.92

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Solution

The fourth proportional to 9,864.30, 13,611.50 and 5,615.92 is: 7,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.30 : 13,611.50 = 5,615.92 : x
  2. Step 2: Convert to fraction form
    9,864.30/13,611.50 = 5,615.92/x
  3. Step 3: Cross multiply
    9,864.30x = 13,611.50 × 5,615.92
  4. Step 4: Simplify right side
    9,864.30x = 76,441,095.08
  5. Step 5: Solve for x
    x = 76,441,095.08/9,864.30
  6. Step 6: Final answer
    x = 7,749.27

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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.