Home / 8,470.32-11,690.52-5,328.24

Finding the Fourth Proportional to 8,470.32, 11,690.52 and 5,328.24

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Solution

The fourth proportional to 8,470.32, 11,690.52 and 5,328.24 is: 7,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.32 : 11,690.52 = 5,328.24 : x
  2. Step 2: Convert to fraction form
    8,470.32/11,690.52 = 5,328.24/x
  3. Step 3: Cross multiply
    8,470.32x = 11,690.52 × 5,328.24
  4. Step 4: Simplify right side
    8,470.32x = 62,289,896.28
  5. Step 5: Solve for x
    x = 62,289,896.28/8,470.32
  6. Step 6: Final answer
    x = 7,353.90

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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.