Home / 15,705.64-21,673.30-8,632.04

Finding the Fourth Proportional to 15,705.64, 21,673.30 and 8,632.04

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Solution

The fourth proportional to 15,705.64, 21,673.30 and 8,632.04 is: 11,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.64 : 21,673.30 = 8,632.04 : x
  2. Step 2: Convert to fraction form
    15,705.64/21,673.30 = 8,632.04/x
  3. Step 3: Cross multiply
    15,705.64x = 21,673.30 × 8,632.04
  4. Step 4: Simplify right side
    15,705.64x = 187,084,792.53
  5. Step 5: Solve for x
    x = 187,084,792.53/15,705.64
  6. Step 6: Final answer
    x = 11,911.95

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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.