Home / 14,723.29-20,318.67-8,436.88

Finding the Fourth Proportional to 14,723.29, 20,318.67 and 8,436.88

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Solution

The fourth proportional to 14,723.29, 20,318.67 and 8,436.88 is: 11,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.29 : 20,318.67 = 8,436.88 : x
  2. Step 2: Convert to fraction form
    14,723.29/20,318.67 = 8,436.88/x
  3. Step 3: Cross multiply
    14,723.29x = 20,318.67 × 8,436.88
  4. Step 4: Simplify right side
    14,723.29x = 171,426,091.66
  5. Step 5: Solve for x
    x = 171,426,091.66/14,723.29
  6. Step 6: Final answer
    x = 11,643.20

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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.