Home / 10,318.96-15,478.53-3,298.91

Finding the Fourth Proportional to 10,318.96, 15,478.53 and 3,298.91

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Solution

The fourth proportional to 10,318.96, 15,478.53 and 3,298.91 is: 4,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.96 : 15,478.53 = 3,298.91 : x
  2. Step 2: Convert to fraction form
    10,318.96/15,478.53 = 3,298.91/x
  3. Step 3: Cross multiply
    10,318.96x = 15,478.53 × 3,298.91
  4. Step 4: Simplify right side
    10,318.96x = 51,062,260.91
  5. Step 5: Solve for x
    x = 51,062,260.91/10,318.96
  6. Step 6: Final answer
    x = 4,948.39

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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.