Home / 7,445.87-10,275.15-4,088.68

Finding the Fourth Proportional to 7,445.87, 10,275.15 and 4,088.68

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Solution

The fourth proportional to 7,445.87, 10,275.15 and 4,088.68 is: 5,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.87 : 10,275.15 = 4,088.68 : x
  2. Step 2: Convert to fraction form
    7,445.87/10,275.15 = 4,088.68/x
  3. Step 3: Cross multiply
    7,445.87x = 10,275.15 × 4,088.68
  4. Step 4: Simplify right side
    7,445.87x = 42,011,789.95
  5. Step 5: Solve for x
    x = 42,011,789.95/7,445.87
  6. Step 6: Final answer
    x = 5,642.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.