Home / 15,638.24-23,460.80-5,249.76

Finding the Fourth Proportional to 15,638.24, 23,460.80 and 5,249.76

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Solution

The fourth proportional to 15,638.24, 23,460.80 and 5,249.76 is: 7,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.24 : 23,460.80 = 5,249.76 : x
  2. Step 2: Convert to fraction form
    15,638.24/23,460.80 = 5,249.76/x
  3. Step 3: Cross multiply
    15,638.24x = 23,460.80 × 5,249.76
  4. Step 4: Simplify right side
    15,638.24x = 123,163,569.41
  5. Step 5: Solve for x
    x = 123,163,569.41/15,638.24
  6. Step 6: Final answer
    x = 7,875.79

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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.