Home / 7,515.28-11,275.51-3,358.16

Finding the Fourth Proportional to 7,515.28, 11,275.51 and 3,358.16

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Solution

The fourth proportional to 7,515.28, 11,275.51 and 3,358.16 is: 5,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.28 : 11,275.51 = 3,358.16 : x
  2. Step 2: Convert to fraction form
    7,515.28/11,275.51 = 3,358.16/x
  3. Step 3: Cross multiply
    7,515.28x = 11,275.51 × 3,358.16
  4. Step 4: Simplify right side
    7,515.28x = 37,864,966.66
  5. Step 5: Solve for x
    x = 37,864,966.66/7,515.28
  6. Step 6: Final answer
    x = 5,038.40

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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.