Home / 10,330.12-15,482.88-5,398.44

Finding the Fourth Proportional to 10,330.12, 15,482.88 and 5,398.44

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Solution

The fourth proportional to 10,330.12, 15,482.88 and 5,398.44 is: 8,091.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.12 : 15,482.88 = 5,398.44 : x
  2. Step 2: Convert to fraction form
    10,330.12/15,482.88 = 5,398.44/x
  3. Step 3: Cross multiply
    10,330.12x = 15,482.88 × 5,398.44
  4. Step 4: Simplify right side
    10,330.12x = 83,583,398.71
  5. Step 5: Solve for x
    x = 83,583,398.71/10,330.12
  6. Step 6: Final answer
    x = 8,091.23

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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.