Home / 8,690.27-11,981.60-7,095.29

Finding the Fourth Proportional to 8,690.27, 11,981.60 and 7,095.29

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Solution

The fourth proportional to 8,690.27, 11,981.60 and 7,095.29 is: 9,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.27 : 11,981.60 = 7,095.29 : x
  2. Step 2: Convert to fraction form
    8,690.27/11,981.60 = 7,095.29/x
  3. Step 3: Cross multiply
    8,690.27x = 11,981.60 × 7,095.29
  4. Step 4: Simplify right side
    8,690.27x = 85,012,831.28
  5. Step 5: Solve for x
    x = 85,012,831.28/8,690.27
  6. Step 6: Final answer
    x = 9,782.54

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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.