Home / 11,527.60-15,903.12-8,870.80

Finding the Fourth Proportional to 11,527.60, 15,903.12 and 8,870.80

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Solution

The fourth proportional to 11,527.60, 15,903.12 and 8,870.80 is: 12,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,527.60 : 15,903.12 = 8,870.80 : x
  2. Step 2: Convert to fraction form
    11,527.60/15,903.12 = 8,870.80/x
  3. Step 3: Cross multiply
    11,527.60x = 15,903.12 × 8,870.80
  4. Step 4: Simplify right side
    11,527.60x = 141,073,396.90
  5. Step 5: Solve for x
    x = 141,073,396.90/11,527.60
  6. Step 6: Final answer
    x = 12,237.88

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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.