Home / 15,638.96-23,445.48-5,776.40

Finding the Fourth Proportional to 15,638.96, 23,445.48 and 5,776.40

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Solution

The fourth proportional to 15,638.96, 23,445.48 and 5,776.40 is: 8,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.96 : 23,445.48 = 5,776.40 : x
  2. Step 2: Convert to fraction form
    15,638.96/23,445.48 = 5,776.40/x
  3. Step 3: Cross multiply
    15,638.96x = 23,445.48 × 5,776.40
  4. Step 4: Simplify right side
    15,638.96x = 135,430,470.67
  5. Step 5: Solve for x
    x = 135,430,470.67/15,638.96
  6. Step 6: Final answer
    x = 8,659.81

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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.