Home / 19,753.76-27,260.88-13,045.28

Finding the Fourth Proportional to 19,753.76, 27,260.88 and 13,045.28

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Solution

The fourth proportional to 19,753.76, 27,260.88 and 13,045.28 is: 18,002.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,753.76 : 27,260.88 = 13,045.28 : x
  2. Step 2: Convert to fraction form
    19,753.76/27,260.88 = 13,045.28/x
  3. Step 3: Cross multiply
    19,753.76x = 27,260.88 × 13,045.28
  4. Step 4: Simplify right side
    19,753.76x = 355,625,812.65
  5. Step 5: Solve for x
    x = 355,625,812.65/19,753.76
  6. Step 6: Final answer
    x = 18,002.94

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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.