Home / 13,154.15-18,149.47-8,444.81

Finding the Fourth Proportional to 13,154.15, 18,149.47 and 8,444.81

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Solution

The fourth proportional to 13,154.15, 18,149.47 and 8,444.81 is: 11,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.15 : 18,149.47 = 8,444.81 : x
  2. Step 2: Convert to fraction form
    13,154.15/18,149.47 = 8,444.81/x
  3. Step 3: Cross multiply
    13,154.15x = 18,149.47 × 8,444.81
  4. Step 4: Simplify right side
    13,154.15x = 153,268,713.89
  5. Step 5: Solve for x
    x = 153,268,713.89/13,154.15
  6. Step 6: Final answer
    x = 11,651.74

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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.