Home / 13,543.92-20,317.56-4,777.08

Finding the Fourth Proportional to 13,543.92, 20,317.56 and 4,777.08

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Solution

The fourth proportional to 13,543.92, 20,317.56 and 4,777.08 is: 7,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.92 : 20,317.56 = 4,777.08 : x
  2. Step 2: Convert to fraction form
    13,543.92/20,317.56 = 4,777.08/x
  3. Step 3: Cross multiply
    13,543.92x = 20,317.56 × 4,777.08
  4. Step 4: Simplify right side
    13,543.92x = 97,058,609.52
  5. Step 5: Solve for x
    x = 97,058,609.52/13,543.92
  6. Step 6: Final answer
    x = 7,166.21

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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.