Home / 15,197.45-20,970.72-8,482.86

Finding the Fourth Proportional to 15,197.45, 20,970.72 and 8,482.86

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Solution

The fourth proportional to 15,197.45, 20,970.72 and 8,482.86 is: 11,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.45 : 20,970.72 = 8,482.86 : x
  2. Step 2: Convert to fraction form
    15,197.45/20,970.72 = 8,482.86/x
  3. Step 3: Cross multiply
    15,197.45x = 20,970.72 × 8,482.86
  4. Step 4: Simplify right side
    15,197.45x = 177,891,681.86
  5. Step 5: Solve for x
    x = 177,891,681.86/15,197.45
  6. Step 6: Final answer
    x = 11,705.37

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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.