Home / 8,910.08-12,288.28-5,372.52

Finding the Fourth Proportional to 8,910.08, 12,288.28 and 5,372.52

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Solution

The fourth proportional to 8,910.08, 12,288.28 and 5,372.52 is: 7,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.08 : 12,288.28 = 5,372.52 : x
  2. Step 2: Convert to fraction form
    8,910.08/12,288.28 = 5,372.52/x
  3. Step 3: Cross multiply
    8,910.08x = 12,288.28 × 5,372.52
  4. Step 4: Simplify right side
    8,910.08x = 66,019,030.07
  5. Step 5: Solve for x
    x = 66,019,030.07/8,910.08
  6. Step 6: Final answer
    x = 7,409.48

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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.