Home / 8,949.08-12,349.74-4,970.20

Finding the Fourth Proportional to 8,949.08, 12,349.74 and 4,970.20

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Solution

The fourth proportional to 8,949.08, 12,349.74 and 4,970.20 is: 6,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.08 : 12,349.74 = 4,970.20 : x
  2. Step 2: Convert to fraction form
    8,949.08/12,349.74 = 4,970.20/x
  3. Step 3: Cross multiply
    8,949.08x = 12,349.74 × 4,970.20
  4. Step 4: Simplify right side
    8,949.08x = 61,380,677.75
  5. Step 5: Solve for x
    x = 61,380,677.75/8,949.08
  6. Step 6: Final answer
    x = 6,858.88

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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.