Home / 13,444.12-20,148.66-6,864.76

Finding the Fourth Proportional to 13,444.12, 20,148.66 and 6,864.76

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Solution

The fourth proportional to 13,444.12, 20,148.66 and 6,864.76 is: 10,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.12 : 20,148.66 = 6,864.76 : x
  2. Step 2: Convert to fraction form
    13,444.12/20,148.66 = 6,864.76/x
  3. Step 3: Cross multiply
    13,444.12x = 20,148.66 × 6,864.76
  4. Step 4: Simplify right side
    13,444.12x = 138,315,715.22
  5. Step 5: Solve for x
    x = 138,315,715.22/13,444.12
  6. Step 6: Final answer
    x = 10,288.19

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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.