Home / 12,560.19-18,840.30-5,538.72

Finding the Fourth Proportional to 12,560.19, 18,840.30 and 5,538.72

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Solution

The fourth proportional to 12,560.19, 18,840.30 and 5,538.72 is: 8,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.19 : 18,840.30 = 5,538.72 : x
  2. Step 2: Convert to fraction form
    12,560.19/18,840.30 = 5,538.72/x
  3. Step 3: Cross multiply
    12,560.19x = 18,840.30 × 5,538.72
  4. Step 4: Simplify right side
    12,560.19x = 104,351,146.42
  5. Step 5: Solve for x
    x = 104,351,146.42/12,560.19
  6. Step 6: Final answer
    x = 8,308.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.