Home / 15,417.54-21,276.28-8,703.46

Finding the Fourth Proportional to 15,417.54, 21,276.28 and 8,703.46

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Solution

The fourth proportional to 15,417.54, 21,276.28 and 8,703.46 is: 12,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.54 : 21,276.28 = 8,703.46 : x
  2. Step 2: Convert to fraction form
    15,417.54/21,276.28 = 8,703.46/x
  3. Step 3: Cross multiply
    15,417.54x = 21,276.28 × 8,703.46
  4. Step 4: Simplify right side
    15,417.54x = 185,177,251.93
  5. Step 5: Solve for x
    x = 185,177,251.93/15,417.54
  6. Step 6: Final answer
    x = 12,010.82

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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.