Home / 15,056.56-20,780.48-9,766.76

Finding the Fourth Proportional to 15,056.56, 20,780.48 and 9,766.76

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Solution

The fourth proportional to 15,056.56, 20,780.48 and 9,766.76 is: 13,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.56 : 20,780.48 = 9,766.76 : x
  2. Step 2: Convert to fraction form
    15,056.56/20,780.48 = 9,766.76/x
  3. Step 3: Cross multiply
    15,056.56x = 20,780.48 × 9,766.76
  4. Step 4: Simplify right side
    15,056.56x = 202,957,960.84
  5. Step 5: Solve for x
    x = 202,957,960.84/15,056.56
  6. Step 6: Final answer
    x = 13,479.70

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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.