Home / 15,904.08-21,948.30-8,831.16

Finding the Fourth Proportional to 15,904.08, 21,948.30 and 8,831.16

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Solution

The fourth proportional to 15,904.08, 21,948.30 and 8,831.16 is: 12,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.08 : 21,948.30 = 8,831.16 : x
  2. Step 2: Convert to fraction form
    15,904.08/21,948.30 = 8,831.16/x
  3. Step 3: Cross multiply
    15,904.08x = 21,948.30 × 8,831.16
  4. Step 4: Simplify right side
    15,904.08x = 193,828,949.03
  5. Step 5: Solve for x
    x = 193,828,949.03/15,904.08
  6. Step 6: Final answer
    x = 12,187.37

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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.