Home / 15,820.41-21,831.31-8,746.38

Finding the Fourth Proportional to 15,820.41, 21,831.31 and 8,746.38

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Solution

The fourth proportional to 15,820.41, 21,831.31 and 8,746.38 is: 12,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.41 : 21,831.31 = 8,746.38 : x
  2. Step 2: Convert to fraction form
    15,820.41/21,831.31 = 8,746.38/x
  3. Step 3: Cross multiply
    15,820.41x = 21,831.31 × 8,746.38
  4. Step 4: Simplify right side
    15,820.41x = 190,944,933.16
  5. Step 5: Solve for x
    x = 190,944,933.16/15,820.41
  6. Step 6: Final answer
    x = 12,069.53

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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.