Home / 9,421.34-13,001.28-5,229.50

Finding the Fourth Proportional to 9,421.34, 13,001.28 and 5,229.50

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Solution

The fourth proportional to 9,421.34, 13,001.28 and 5,229.50 is: 7,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.34 : 13,001.28 = 5,229.50 : x
  2. Step 2: Convert to fraction form
    9,421.34/13,001.28 = 5,229.50/x
  3. Step 3: Cross multiply
    9,421.34x = 13,001.28 × 5,229.50
  4. Step 4: Simplify right side
    9,421.34x = 67,990,193.76
  5. Step 5: Solve for x
    x = 67,990,193.76/9,421.34
  6. Step 6: Final answer
    x = 7,216.62

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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.