Home / 18,239.52-25,180.02-12,302.40

Finding the Fourth Proportional to 18,239.52, 25,180.02 and 12,302.40

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Solution

The fourth proportional to 18,239.52, 25,180.02 and 12,302.40 is: 16,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.52 : 25,180.02 = 12,302.40 : x
  2. Step 2: Convert to fraction form
    18,239.52/25,180.02 = 12,302.40/x
  3. Step 3: Cross multiply
    18,239.52x = 25,180.02 × 12,302.40
  4. Step 4: Simplify right side
    18,239.52x = 309,774,678.05
  5. Step 5: Solve for x
    x = 309,774,678.05/18,239.52
  6. Step 6: Final answer
    x = 16,983.71

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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.