Home / 9,655.15-13,320.20-5,875.28

Finding the Fourth Proportional to 9,655.15, 13,320.20 and 5,875.28

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Solution

The fourth proportional to 9,655.15, 13,320.20 and 5,875.28 is: 8,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,655.15 : 13,320.20 = 5,875.28 : x
  2. Step 2: Convert to fraction form
    9,655.15/13,320.20 = 5,875.28/x
  3. Step 3: Cross multiply
    9,655.15x = 13,320.20 × 5,875.28
  4. Step 4: Simplify right side
    9,655.15x = 78,259,944.57
  5. Step 5: Solve for x
    x = 78,259,944.57/9,655.15
  6. Step 6: Final answer
    x = 8,105.51

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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.