Home / 13,487.07-20,197.80-9,315.98

Finding the Fourth Proportional to 13,487.07, 20,197.80 and 9,315.98

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Solution

The fourth proportional to 13,487.07, 20,197.80 and 9,315.98 is: 13,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.07 : 20,197.80 = 9,315.98 : x
  2. Step 2: Convert to fraction form
    13,487.07/20,197.80 = 9,315.98/x
  3. Step 3: Cross multiply
    13,487.07x = 20,197.80 × 9,315.98
  4. Step 4: Simplify right side
    13,487.07x = 188,162,199.86
  5. Step 5: Solve for x
    x = 188,162,199.86/13,487.07
  6. Step 6: Final answer
    x = 13,951.30

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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.