Home / 13,734.61-20,587.78-5,411.26

Finding the Fourth Proportional to 13,734.61, 20,587.78 and 5,411.26

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Solution

The fourth proportional to 13,734.61, 20,587.78 and 5,411.26 is: 8,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.61 : 20,587.78 = 5,411.26 : x
  2. Step 2: Convert to fraction form
    13,734.61/20,587.78 = 5,411.26/x
  3. Step 3: Cross multiply
    13,734.61x = 20,587.78 × 5,411.26
  4. Step 4: Simplify right side
    13,734.61x = 111,405,830.40
  5. Step 5: Solve for x
    x = 111,405,830.40/13,734.61
  6. Step 6: Final answer
    x = 8,111.32

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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.