Home / 9,140.15-12,613.39-4,948.40

Finding the Fourth Proportional to 9,140.15, 12,613.39 and 4,948.40

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Solution

The fourth proportional to 9,140.15, 12,613.39 and 4,948.40 is: 6,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.15 : 12,613.39 = 4,948.40 : x
  2. Step 2: Convert to fraction form
    9,140.15/12,613.39 = 4,948.40/x
  3. Step 3: Cross multiply
    9,140.15x = 12,613.39 × 4,948.40
  4. Step 4: Simplify right side
    9,140.15x = 62,416,118.24
  5. Step 5: Solve for x
    x = 62,416,118.24/9,140.15
  6. Step 6: Final answer
    x = 6,828.78

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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.