Home / 7,515.16-11,275.40-3,358.12

Finding the Fourth Proportional to 7,515.16, 11,275.40 and 3,358.12

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Solution

The fourth proportional to 7,515.16, 11,275.40 and 3,358.12 is: 5,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.16 : 11,275.40 = 3,358.12 : x
  2. Step 2: Convert to fraction form
    7,515.16/11,275.40 = 3,358.12/x
  3. Step 3: Cross multiply
    7,515.16x = 11,275.40 × 3,358.12
  4. Step 4: Simplify right side
    7,515.16x = 37,864,146.25
  5. Step 5: Solve for x
    x = 37,864,146.25/7,515.16
  6. Step 6: Final answer
    x = 5,038.37

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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.