Home / 12,242.40-18,363.60-5,330.40

Finding the Fourth Proportional to 12,242.40, 18,363.60 and 5,330.40

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Solution

The fourth proportional to 12,242.40, 18,363.60 and 5,330.40 is: 7,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.40 : 18,363.60 = 5,330.40 : x
  2. Step 2: Convert to fraction form
    12,242.40/18,363.60 = 5,330.40/x
  3. Step 3: Cross multiply
    12,242.40x = 18,363.60 × 5,330.40
  4. Step 4: Simplify right side
    12,242.40x = 97,885,333.44
  5. Step 5: Solve for x
    x = 97,885,333.44/12,242.40
  6. Step 6: Final answer
    x = 7,995.60

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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.