Home / 7,482.40-11,247.90-5,306.20

Finding the Fourth Proportional to 7,482.40, 11,247.90 and 5,306.20

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Solution

The fourth proportional to 7,482.40, 11,247.90 and 5,306.20 is: 7,976.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.40 : 11,247.90 = 5,306.20 : x
  2. Step 2: Convert to fraction form
    7,482.40/11,247.90 = 5,306.20/x
  3. Step 3: Cross multiply
    7,482.40x = 11,247.90 × 5,306.20
  4. Step 4: Simplify right side
    7,482.40x = 59,683,606.98
  5. Step 5: Solve for x
    x = 59,683,606.98/7,482.40
  6. Step 6: Final answer
    x = 7,976.53

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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.