Home / 9,831.05-13,569.81-6,689.06

Finding the Fourth Proportional to 9,831.05, 13,569.81 and 6,689.06

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Solution

The fourth proportional to 9,831.05, 13,569.81 and 6,689.06 is: 9,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.05 : 13,569.81 = 6,689.06 : x
  2. Step 2: Convert to fraction form
    9,831.05/13,569.81 = 6,689.06/x
  3. Step 3: Cross multiply
    9,831.05x = 13,569.81 × 6,689.06
  4. Step 4: Simplify right side
    9,831.05x = 90,769,268.86
  5. Step 5: Solve for x
    x = 90,769,268.86/9,831.05
  6. Step 6: Final answer
    x = 9,232.92

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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.