Home / 15,954.96-23,986.50-12,856.72

Finding the Fourth Proportional to 15,954.96, 23,986.50 and 12,856.72

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Solution

The fourth proportional to 15,954.96, 23,986.50 and 12,856.72 is: 19,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.96 : 23,986.50 = 12,856.72 : x
  2. Step 2: Convert to fraction form
    15,954.96/23,986.50 = 12,856.72/x
  3. Step 3: Cross multiply
    15,954.96x = 23,986.50 × 12,856.72
  4. Step 4: Simplify right side
    15,954.96x = 308,387,714.28
  5. Step 5: Solve for x
    x = 308,387,714.28/15,954.96
  6. Step 6: Final answer
    x = 19,328.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.