Home / 13,600.71-18,770.33-9,133.76

Finding the Fourth Proportional to 13,600.71, 18,770.33 and 9,133.76

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Solution

The fourth proportional to 13,600.71, 18,770.33 and 9,133.76 is: 12,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.71 : 18,770.33 = 9,133.76 : x
  2. Step 2: Convert to fraction form
    13,600.71/18,770.33 = 9,133.76/x
  3. Step 3: Cross multiply
    13,600.71x = 18,770.33 × 9,133.76
  4. Step 4: Simplify right side
    13,600.71x = 171,443,689.34
  5. Step 5: Solve for x
    x = 171,443,689.34/13,600.71
  6. Step 6: Final answer
    x = 12,605.50

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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.