Home / 9,864.90-13,618.53-6,512.58

Finding the Fourth Proportional to 9,864.90, 13,618.53 and 6,512.58

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Solution

The fourth proportional to 9,864.90, 13,618.53 and 6,512.58 is: 8,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.90 : 13,618.53 = 6,512.58 : x
  2. Step 2: Convert to fraction form
    9,864.90/13,618.53 = 6,512.58/x
  3. Step 3: Cross multiply
    9,864.90x = 13,618.53 × 6,512.58
  4. Step 4: Simplify right side
    9,864.90x = 88,691,766.11
  5. Step 5: Solve for x
    x = 88,691,766.11/9,864.90
  6. Step 6: Final answer
    x = 8,990.64

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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.