Home / 9,865.67-13,617.45-6,280.74

Finding the Fourth Proportional to 9,865.67, 13,617.45 and 6,280.74

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Solution

The fourth proportional to 9,865.67, 13,617.45 and 6,280.74 is: 8,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.67 : 13,617.45 = 6,280.74 : x
  2. Step 2: Convert to fraction form
    9,865.67/13,617.45 = 6,280.74/x
  3. Step 3: Cross multiply
    9,865.67x = 13,617.45 × 6,280.74
  4. Step 4: Simplify right side
    9,865.67x = 85,527,662.91
  5. Step 5: Solve for x
    x = 85,527,662.91/9,865.67
  6. Step 6: Final answer
    x = 8,669.22

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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.