Home / 15,780.56-23,671.44-5,251.52

Finding the Fourth Proportional to 15,780.56, 23,671.44 and 5,251.52

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Solution

The fourth proportional to 15,780.56, 23,671.44 and 5,251.52 is: 7,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.56 : 23,671.44 = 5,251.52 : x
  2. Step 2: Convert to fraction form
    15,780.56/23,671.44 = 5,251.52/x
  3. Step 3: Cross multiply
    15,780.56x = 23,671.44 × 5,251.52
  4. Step 4: Simplify right side
    15,780.56x = 124,311,040.59
  5. Step 5: Solve for x
    x = 124,311,040.59/15,780.56
  6. Step 6: Final answer
    x = 7,877.48

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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.