Home / 9,345.09-12,881.19-6,823.21

Finding the Fourth Proportional to 9,345.09, 12,881.19 and 6,823.21

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Solution

The fourth proportional to 9,345.09, 12,881.19 and 6,823.21 is: 9,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.09 : 12,881.19 = 6,823.21 : x
  2. Step 2: Convert to fraction form
    9,345.09/12,881.19 = 6,823.21/x
  3. Step 3: Cross multiply
    9,345.09x = 12,881.19 × 6,823.21
  4. Step 4: Simplify right side
    9,345.09x = 87,891,081.96
  5. Step 5: Solve for x
    x = 87,891,081.96/9,345.09
  6. Step 6: Final answer
    x = 9,405.05

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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.