Home / 13,351.32-18,423.66-8,316.12

Finding the Fourth Proportional to 13,351.32, 18,423.66 and 8,316.12

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Solution

The fourth proportional to 13,351.32, 18,423.66 and 8,316.12 is: 11,475.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.32 : 18,423.66 = 8,316.12 : x
  2. Step 2: Convert to fraction form
    13,351.32/18,423.66 = 8,316.12/x
  3. Step 3: Cross multiply
    13,351.32x = 18,423.66 × 8,316.12
  4. Step 4: Simplify right side
    13,351.32x = 153,213,367.40
  5. Step 5: Solve for x
    x = 153,213,367.40/13,351.32
  6. Step 6: Final answer
    x = 11,475.52

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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.