Home / 12,280.64-18,417.72-4,884.80

Finding the Fourth Proportional to 12,280.64, 18,417.72 and 4,884.80

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Solution

The fourth proportional to 12,280.64, 18,417.72 and 4,884.80 is: 7,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.64 : 18,417.72 = 4,884.80 : x
  2. Step 2: Convert to fraction form
    12,280.64/18,417.72 = 4,884.80/x
  3. Step 3: Cross multiply
    12,280.64x = 18,417.72 × 4,884.80
  4. Step 4: Simplify right side
    12,280.64x = 89,966,878.66
  5. Step 5: Solve for x
    x = 89,966,878.66/12,280.64
  6. Step 6: Final answer
    x = 7,325.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.