Home / 13,275.60-18,317.20-9,732.64

Finding the Fourth Proportional to 13,275.60, 18,317.20 and 9,732.64

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Solution

The fourth proportional to 13,275.60, 18,317.20 and 9,732.64 is: 13,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.60 : 18,317.20 = 9,732.64 : x
  2. Step 2: Convert to fraction form
    13,275.60/18,317.20 = 9,732.64/x
  3. Step 3: Cross multiply
    13,275.60x = 18,317.20 × 9,732.64
  4. Step 4: Simplify right side
    13,275.60x = 178,274,713.41
  5. Step 5: Solve for x
    x = 178,274,713.41/13,275.60
  6. Step 6: Final answer
    x = 13,428.75

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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.