Home / 9,000.29-12,420.47-5,020.76

Finding the Fourth Proportional to 9,000.29, 12,420.47 and 5,020.76

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Solution

The fourth proportional to 9,000.29, 12,420.47 and 5,020.76 is: 6,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.29 : 12,420.47 = 5,020.76 : x
  2. Step 2: Convert to fraction form
    9,000.29/12,420.47 = 5,020.76/x
  3. Step 3: Cross multiply
    9,000.29x = 12,420.47 × 5,020.76
  4. Step 4: Simplify right side
    9,000.29x = 62,360,198.96
  5. Step 5: Solve for x
    x = 62,360,198.96/9,000.29
  6. Step 6: Final answer
    x = 6,928.69

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Double scale
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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.