Home / 8,831.78-12,199.65-6,187.94

Finding the Fourth Proportional to 8,831.78, 12,199.65 and 6,187.94

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Solution

The fourth proportional to 8,831.78, 12,199.65 and 6,187.94 is: 8,547.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.78 : 12,199.65 = 6,187.94 : x
  2. Step 2: Convert to fraction form
    8,831.78/12,199.65 = 6,187.94/x
  3. Step 3: Cross multiply
    8,831.78x = 12,199.65 × 6,187.94
  4. Step 4: Simplify right side
    8,831.78x = 75,490,702.22
  5. Step 5: Solve for x
    x = 75,490,702.22/8,831.78
  6. Step 6: Final answer
    x = 8,547.62

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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.