Home / 7,515.70-11,271.15-3,132.10

Finding the Fourth Proportional to 7,515.70, 11,271.15 and 3,132.10

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Solution

The fourth proportional to 7,515.70, 11,271.15 and 3,132.10 is: 4,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.70 : 11,271.15 = 3,132.10 : x
  2. Step 2: Convert to fraction form
    7,515.70/11,271.15 = 3,132.10/x
  3. Step 3: Cross multiply
    7,515.70x = 11,271.15 × 3,132.10
  4. Step 4: Simplify right side
    7,515.70x = 35,302,368.92
  5. Step 5: Solve for x
    x = 35,302,368.92/7,515.70
  6. Step 6: Final answer
    x = 4,697.15

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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.