Home / 9,345.26-12,885.08-6,515.12

Finding the Fourth Proportional to 9,345.26, 12,885.08 and 6,515.12

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Solution

The fourth proportional to 9,345.26, 12,885.08 and 6,515.12 is: 8,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.26 : 12,885.08 = 6,515.12 : x
  2. Step 2: Convert to fraction form
    9,345.26/12,885.08 = 6,515.12/x
  3. Step 3: Cross multiply
    9,345.26x = 12,885.08 × 6,515.12
  4. Step 4: Simplify right side
    9,345.26x = 83,947,842.41
  5. Step 5: Solve for x
    x = 83,947,842.41/9,345.26
  6. Step 6: Final answer
    x = 8,982.93

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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.