Home / 7,520.24-11,281.40-3,136.68

Finding the Fourth Proportional to 7,520.24, 11,281.40 and 3,136.68

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Solution

The fourth proportional to 7,520.24, 11,281.40 and 3,136.68 is: 4,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.24 : 11,281.40 = 3,136.68 : x
  2. Step 2: Convert to fraction form
    7,520.24/11,281.40 = 3,136.68/x
  3. Step 3: Cross multiply
    7,520.24x = 11,281.40 × 3,136.68
  4. Step 4: Simplify right side
    7,520.24x = 35,386,126.07
  5. Step 5: Solve for x
    x = 35,386,126.07/7,520.24
  6. Step 6: Final answer
    x = 4,705.45

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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.