Home / 14,729.05-20,331.84-9,426.79

Finding the Fourth Proportional to 14,729.05, 20,331.84 and 9,426.79

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Solution

The fourth proportional to 14,729.05, 20,331.84 and 9,426.79 is: 13,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.05 : 20,331.84 = 9,426.79 : x
  2. Step 2: Convert to fraction form
    14,729.05/20,331.84 = 9,426.79/x
  3. Step 3: Cross multiply
    14,729.05x = 20,331.84 × 9,426.79
  4. Step 4: Simplify right side
    14,729.05x = 191,663,985.99
  5. Step 5: Solve for x
    x = 191,663,985.99/14,729.05
  6. Step 6: Final answer
    x = 13,012.65

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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.