Home / 13,534.53-18,677.09-7,869.04

Finding the Fourth Proportional to 13,534.53, 18,677.09 and 7,869.04

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Solution

The fourth proportional to 13,534.53, 18,677.09 and 7,869.04 is: 10,858.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.53 : 18,677.09 = 7,869.04 : x
  2. Step 2: Convert to fraction form
    13,534.53/18,677.09 = 7,869.04/x
  3. Step 3: Cross multiply
    13,534.53x = 18,677.09 × 7,869.04
  4. Step 4: Simplify right side
    13,534.53x = 146,970,768.29
  5. Step 5: Solve for x
    x = 146,970,768.29/13,534.53
  6. Step 6: Final answer
    x = 10,858.95

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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.