Home / 13,524.64-18,665.60-7,557.12

Finding the Fourth Proportional to 13,524.64, 18,665.60 and 7,557.12

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Solution

The fourth proportional to 13,524.64, 18,665.60 and 7,557.12 is: 10,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.64 : 18,665.60 = 7,557.12 : x
  2. Step 2: Convert to fraction form
    13,524.64/18,665.60 = 7,557.12/x
  3. Step 3: Cross multiply
    13,524.64x = 18,665.60 × 7,557.12
  4. Step 4: Simplify right side
    13,524.64x = 141,058,179.07
  5. Step 5: Solve for x
    x = 141,058,179.07/13,524.64
  6. Step 6: Final answer
    x = 10,429.72

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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.