Home / 10,812.02-14,919.54-6,831.68

Finding the Fourth Proportional to 10,812.02, 14,919.54 and 6,831.68

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Solution

The fourth proportional to 10,812.02, 14,919.54 and 6,831.68 is: 9,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.02 : 14,919.54 = 6,831.68 : x
  2. Step 2: Convert to fraction form
    10,812.02/14,919.54 = 6,831.68/x
  3. Step 3: Cross multiply
    10,812.02x = 14,919.54 × 6,831.68
  4. Step 4: Simplify right side
    10,812.02x = 101,925,523.03
  5. Step 5: Solve for x
    x = 101,925,523.03/10,812.02
  6. Step 6: Final answer
    x = 9,427.06

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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.