Home / 12,325.51-18,488.40-3,560.50

Finding the Fourth Proportional to 12,325.51, 18,488.40 and 3,560.50

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Solution

The fourth proportional to 12,325.51, 18,488.40 and 3,560.50 is: 5,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.51 : 18,488.40 = 3,560.50 : x
  2. Step 2: Convert to fraction form
    12,325.51/18,488.40 = 3,560.50/x
  3. Step 3: Cross multiply
    12,325.51x = 18,488.40 × 3,560.50
  4. Step 4: Simplify right side
    12,325.51x = 65,827,948.20
  5. Step 5: Solve for x
    x = 65,827,948.20/12,325.51
  6. Step 6: Final answer
    x = 5,340.79

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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.