Home / 10,919.12-15,064.92-6,444.41

Finding the Fourth Proportional to 10,919.12, 15,064.92 and 6,444.41

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Solution

The fourth proportional to 10,919.12, 15,064.92 and 6,444.41 is: 8,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.12 : 15,064.92 = 6,444.41 : x
  2. Step 2: Convert to fraction form
    10,919.12/15,064.92 = 6,444.41/x
  3. Step 3: Cross multiply
    10,919.12x = 15,064.92 × 6,444.41
  4. Step 4: Simplify right side
    10,919.12x = 97,084,445.77
  5. Step 5: Solve for x
    x = 97,084,445.77/10,919.12
  6. Step 6: Final answer
    x = 8,891.24

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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.