Home / 9,420.98-13,001.30-5,230.04

Finding the Fourth Proportional to 9,420.98, 13,001.30 and 5,230.04

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Solution

The fourth proportional to 9,420.98, 13,001.30 and 5,230.04 is: 7,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.98 : 13,001.30 = 5,230.04 : x
  2. Step 2: Convert to fraction form
    9,420.98/13,001.30 = 5,230.04/x
  3. Step 3: Cross multiply
    9,420.98x = 13,001.30 × 5,230.04
  4. Step 4: Simplify right side
    9,420.98x = 67,997,319.05
  5. Step 5: Solve for x
    x = 67,997,319.05/9,420.98
  6. Step 6: Final answer
    x = 7,217.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.