Home / 8,949.12-12,349.44-4,916.16

Finding the Fourth Proportional to 8,949.12, 12,349.44 and 4,916.16

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Solution

The fourth proportional to 8,949.12, 12,349.44 and 4,916.16 is: 6,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.12 : 12,349.44 = 4,916.16 : x
  2. Step 2: Convert to fraction form
    8,949.12/12,349.44 = 4,916.16/x
  3. Step 3: Cross multiply
    8,949.12x = 12,349.44 × 4,916.16
  4. Step 4: Simplify right side
    8,949.12x = 60,711,822.95
  5. Step 5: Solve for x
    x = 60,711,822.95/8,949.12
  6. Step 6: Final answer
    x = 6,784.11

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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.