Home / 9,815.19-13,540.62-6,541.68

Finding the Fourth Proportional to 9,815.19, 13,540.62 and 6,541.68

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Solution

The fourth proportional to 9,815.19, 13,540.62 and 6,541.68 is: 9,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.19 : 13,540.62 = 6,541.68 : x
  2. Step 2: Convert to fraction form
    9,815.19/13,540.62 = 6,541.68/x
  3. Step 3: Cross multiply
    9,815.19x = 13,540.62 × 6,541.68
  4. Step 4: Simplify right side
    9,815.19x = 88,578,403.04
  5. Step 5: Solve for x
    x = 88,578,403.04/9,815.19
  6. Step 6: Final answer
    x = 9,024.62

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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.