Home / 13,501.15-20,230.33-8,238.47

Finding the Fourth Proportional to 13,501.15, 20,230.33 and 8,238.47

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Solution

The fourth proportional to 13,501.15, 20,230.33 and 8,238.47 is: 12,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.15 : 20,230.33 = 8,238.47 : x
  2. Step 2: Convert to fraction form
    13,501.15/20,230.33 = 8,238.47/x
  3. Step 3: Cross multiply
    13,501.15x = 20,230.33 × 8,238.47
  4. Step 4: Simplify right side
    13,501.15x = 166,666,966.80
  5. Step 5: Solve for x
    x = 166,666,966.80/13,501.15
  6. Step 6: Final answer
    x = 12,344.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.