Home / 15,182.42-20,951.15-8,808.68

Finding the Fourth Proportional to 15,182.42, 20,951.15 and 8,808.68

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Solution

The fourth proportional to 15,182.42, 20,951.15 and 8,808.68 is: 12,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.42 : 20,951.15 = 8,808.68 : x
  2. Step 2: Convert to fraction form
    15,182.42/20,951.15 = 8,808.68/x
  3. Step 3: Cross multiply
    15,182.42x = 20,951.15 × 8,808.68
  4. Step 4: Simplify right side
    15,182.42x = 184,551,984.32
  5. Step 5: Solve for x
    x = 184,551,984.32/15,182.42
  6. Step 6: Final answer
    x = 12,155.64

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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.