Home / 8,909.32-13,351.20-5,005.51

Finding the Fourth Proportional to 8,909.32, 13,351.20 and 5,005.51

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Solution

The fourth proportional to 8,909.32, 13,351.20 and 5,005.51 is: 7,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.32 : 13,351.20 = 5,005.51 : x
  2. Step 2: Convert to fraction form
    8,909.32/13,351.20 = 5,005.51/x
  3. Step 3: Cross multiply
    8,909.32x = 13,351.20 × 5,005.51
  4. Step 4: Simplify right side
    8,909.32x = 66,829,565.11
  5. Step 5: Solve for x
    x = 66,829,565.11/8,909.32
  6. Step 6: Final answer
    x = 7,501.08

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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.