Home / 14,799.88-20,424.96-8,428.53

Finding the Fourth Proportional to 14,799.88, 20,424.96 and 8,428.53

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Solution

The fourth proportional to 14,799.88, 20,424.96 and 8,428.53 is: 11,632.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.88 : 20,424.96 = 8,428.53 : x
  2. Step 2: Convert to fraction form
    14,799.88/20,424.96 = 8,428.53/x
  3. Step 3: Cross multiply
    14,799.88x = 20,424.96 × 8,428.53
  4. Step 4: Simplify right side
    14,799.88x = 172,152,345.97
  5. Step 5: Solve for x
    x = 172,152,345.97/14,799.88
  6. Step 6: Final answer
    x = 11,632.01

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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.