Home / 13,113.68-18,084.72-9,764.72

Finding the Fourth Proportional to 13,113.68, 18,084.72 and 9,764.72

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Solution

The fourth proportional to 13,113.68, 18,084.72 and 9,764.72 is: 13,466.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.68 : 18,084.72 = 9,764.72 : x
  2. Step 2: Convert to fraction form
    13,113.68/18,084.72 = 9,764.72/x
  3. Step 3: Cross multiply
    13,113.68x = 18,084.72 × 9,764.72
  4. Step 4: Simplify right side
    13,113.68x = 176,592,227.08
  5. Step 5: Solve for x
    x = 176,592,227.08/13,113.68
  6. Step 6: Final answer
    x = 13,466.26

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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.