Home / 9,291.24-12,821.92-5,099.60

Finding the Fourth Proportional to 9,291.24, 12,821.92 and 5,099.60

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Solution

The fourth proportional to 9,291.24, 12,821.92 and 5,099.60 is: 7,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.24 : 12,821.92 = 5,099.60 : x
  2. Step 2: Convert to fraction form
    9,291.24/12,821.92 = 5,099.60/x
  3. Step 3: Cross multiply
    9,291.24x = 12,821.92 × 5,099.60
  4. Step 4: Simplify right side
    9,291.24x = 65,386,663.23
  5. Step 5: Solve for x
    x = 65,386,663.23/9,291.24
  6. Step 6: Final answer
    x = 7,037.45

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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.