Home / 10,345.11-15,518.57-3,325.75

Finding the Fourth Proportional to 10,345.11, 15,518.57 and 3,325.75

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Solution

The fourth proportional to 10,345.11, 15,518.57 and 3,325.75 is: 4,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.11 : 15,518.57 = 3,325.75 : x
  2. Step 2: Convert to fraction form
    10,345.11/15,518.57 = 3,325.75/x
  3. Step 3: Cross multiply
    10,345.11x = 15,518.57 × 3,325.75
  4. Step 4: Simplify right side
    10,345.11x = 51,610,884.18
  5. Step 5: Solve for x
    x = 51,610,884.18/10,345.11
  6. Step 6: Final answer
    x = 4,988.92

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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.