Home / 10,318.36-15,475.81-2,920.98

Finding the Fourth Proportional to 10,318.36, 15,475.81 and 2,920.98

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Solution

The fourth proportional to 10,318.36, 15,475.81 and 2,920.98 is: 4,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.36 : 15,475.81 = 2,920.98 : x
  2. Step 2: Convert to fraction form
    10,318.36/15,475.81 = 2,920.98/x
  3. Step 3: Cross multiply
    10,318.36x = 15,475.81 × 2,920.98
  4. Step 4: Simplify right side
    10,318.36x = 45,204,531.49
  5. Step 5: Solve for x
    x = 45,204,531.49/10,318.36
  6. Step 6: Final answer
    x = 4,380.98

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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.