Home / 15,510.56-23,146-13,849.28

Finding the Fourth Proportional to 15,510.56, 23,146 and 13,849.28

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Solution

The fourth proportional to 15,510.56, 23,146 and 13,849.28 is: 20,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.56 : 23,146 = 13,849.28 : x
  2. Step 2: Convert to fraction form
    15,510.56/23,146 = 13,849.28/x
  3. Step 3: Cross multiply
    15,510.56x = 23,146 × 13,849.28
  4. Step 4: Simplify right side
    15,510.56x = 320,555,434.88
  5. Step 5: Solve for x
    x = 320,555,434.88/15,510.56
  6. Step 6: Final answer
    x = 20,666.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.