Home / 15,904.74-21,948.60-8,831.18

Finding the Fourth Proportional to 15,904.74, 21,948.60 and 8,831.18

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Solution

The fourth proportional to 15,904.74, 21,948.60 and 8,831.18 is: 12,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.74 : 21,948.60 = 8,831.18 : x
  2. Step 2: Convert to fraction form
    15,904.74/21,948.60 = 8,831.18/x
  3. Step 3: Cross multiply
    15,904.74x = 21,948.60 × 8,831.18
  4. Step 4: Simplify right side
    15,904.74x = 193,832,037.35
  5. Step 5: Solve for x
    x = 193,832,037.35/15,904.74
  6. Step 6: Final answer
    x = 12,187.06

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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.