Home / 15,713.96-21,679.07-8,995.95

Finding the Fourth Proportional to 15,713.96, 21,679.07 and 8,995.95

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Solution

The fourth proportional to 15,713.96, 21,679.07 and 8,995.95 is: 12,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.96 : 21,679.07 = 8,995.95 : x
  2. Step 2: Convert to fraction form
    15,713.96/21,679.07 = 8,995.95/x
  3. Step 3: Cross multiply
    15,713.96x = 21,679.07 × 8,995.95
  4. Step 4: Simplify right side
    15,713.96x = 195,023,784.79
  5. Step 5: Solve for x
    x = 195,023,784.79/15,713.96
  6. Step 6: Final answer
    x = 12,410.87

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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.