Home / 18,666.94-25,752.99-13,000.18

Finding the Fourth Proportional to 18,666.94, 25,752.99 and 13,000.18

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Solution

The fourth proportional to 18,666.94, 25,752.99 and 13,000.18 is: 17,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.94 : 25,752.99 = 13,000.18 : x
  2. Step 2: Convert to fraction form
    18,666.94/25,752.99 = 13,000.18/x
  3. Step 3: Cross multiply
    18,666.94x = 25,752.99 × 13,000.18
  4. Step 4: Simplify right side
    18,666.94x = 334,793,505.54
  5. Step 5: Solve for x
    x = 334,793,505.54/18,666.94
  6. Step 6: Final answer
    x = 17,935.10

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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.