Home / 13,535.40-18,607.05-11,640.04

Finding the Fourth Proportional to 13,535.40, 18,607.05 and 11,640.04

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Solution

The fourth proportional to 13,535.40, 18,607.05 and 11,640.04 is: 16,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.40 : 18,607.05 = 11,640.04 : x
  2. Step 2: Convert to fraction form
    13,535.40/18,607.05 = 11,640.04/x
  3. Step 3: Cross multiply
    13,535.40x = 18,607.05 × 11,640.04
  4. Step 4: Simplify right side
    13,535.40x = 216,586,806.28
  5. Step 5: Solve for x
    x = 216,586,806.28/13,535.40
  6. Step 6: Final answer
    x = 16,001.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.