Home / 13,534.90-18,677.70-9,507.56

Finding the Fourth Proportional to 13,534.90, 18,677.70 and 9,507.56

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Solution

The fourth proportional to 13,534.90, 18,677.70 and 9,507.56 is: 13,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.90 : 18,677.70 = 9,507.56 : x
  2. Step 2: Convert to fraction form
    13,534.90/18,677.70 = 9,507.56/x
  3. Step 3: Cross multiply
    13,534.90x = 18,677.70 × 9,507.56
  4. Step 4: Simplify right side
    13,534.90x = 177,579,353.41
  5. Step 5: Solve for x
    x = 177,579,353.41/13,534.90
  6. Step 6: Final answer
    x = 13,120.11

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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.