Home / 9,421.30-13,001.34-5,229.28

Finding the Fourth Proportional to 9,421.30, 13,001.34 and 5,229.28

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Solution

The fourth proportional to 9,421.30, 13,001.34 and 5,229.28 is: 7,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.30 : 13,001.34 = 5,229.28 : x
  2. Step 2: Convert to fraction form
    9,421.30/13,001.34 = 5,229.28/x
  3. Step 3: Cross multiply
    9,421.30x = 13,001.34 × 5,229.28
  4. Step 4: Simplify right side
    9,421.30x = 67,987,647.24
  5. Step 5: Solve for x
    x = 67,987,647.24/9,421.30
  6. Step 6: Final answer
    x = 7,216.38

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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.