Home / 13,244.70-18,266.67-7,938.30

Finding the Fourth Proportional to 13,244.70, 18,266.67 and 7,938.30

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Solution

The fourth proportional to 13,244.70, 18,266.67 and 7,938.30 is: 10,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.70 : 18,266.67 = 7,938.30 : x
  2. Step 2: Convert to fraction form
    13,244.70/18,266.67 = 7,938.30/x
  3. Step 3: Cross multiply
    13,244.70x = 18,266.67 × 7,938.30
  4. Step 4: Simplify right side
    13,244.70x = 145,006,306.46
  5. Step 5: Solve for x
    x = 145,006,306.46/13,244.70
  6. Step 6: Final answer
    x = 10,948.25

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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.