Home / 8,280.25-11,426.72-4,646.30

Finding the Fourth Proportional to 8,280.25, 11,426.72 and 4,646.30

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Solution

The fourth proportional to 8,280.25, 11,426.72 and 4,646.30 is: 6,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.25 : 11,426.72 = 4,646.30 : x
  2. Step 2: Convert to fraction form
    8,280.25/11,426.72 = 4,646.30/x
  3. Step 3: Cross multiply
    8,280.25x = 11,426.72 × 4,646.30
  4. Step 4: Simplify right side
    8,280.25x = 53,091,945.90
  5. Step 5: Solve for x
    x = 53,091,945.90/8,280.25
  6. Step 6: Final answer
    x = 6,411.88

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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.