Home / 13,251.23-18,302.73-9,660.50

Finding the Fourth Proportional to 13,251.23, 18,302.73 and 9,660.50

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Solution

The fourth proportional to 13,251.23, 18,302.73 and 9,660.50 is: 13,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.23 : 18,302.73 = 9,660.50 : x
  2. Step 2: Convert to fraction form
    13,251.23/18,302.73 = 9,660.50/x
  3. Step 3: Cross multiply
    13,251.23x = 18,302.73 × 9,660.50
  4. Step 4: Simplify right side
    13,251.23x = 176,813,523.17
  5. Step 5: Solve for x
    x = 176,813,523.17/13,251.23
  6. Step 6: Final answer
    x = 13,343.18

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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.