Home / 18,646.18-27,969.28-12,785.02

Finding the Fourth Proportional to 18,646.18, 27,969.28 and 12,785.02

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Solution

The fourth proportional to 18,646.18, 27,969.28 and 12,785.02 is: 19,177.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.18 : 27,969.28 = 12,785.02 : x
  2. Step 2: Convert to fraction form
    18,646.18/27,969.28 = 12,785.02/x
  3. Step 3: Cross multiply
    18,646.18x = 27,969.28 × 12,785.02
  4. Step 4: Simplify right side
    18,646.18x = 357,587,702.30
  5. Step 5: Solve for x
    x = 357,587,702.30/18,646.18
  6. Step 6: Final answer
    x = 19,177.53

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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.