Home / 12,357.18-18,535.62-4,961.51

Finding the Fourth Proportional to 12,357.18, 18,535.62 and 4,961.51

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Solution

The fourth proportional to 12,357.18, 18,535.62 and 4,961.51 is: 7,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.18 : 18,535.62 = 4,961.51 : x
  2. Step 2: Convert to fraction form
    12,357.18/18,535.62 = 4,961.51/x
  3. Step 3: Cross multiply
    12,357.18x = 18,535.62 × 4,961.51
  4. Step 4: Simplify right side
    12,357.18x = 91,964,592.20
  5. Step 5: Solve for x
    x = 91,964,592.20/12,357.18
  6. Step 6: Final answer
    x = 7,442.20

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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.