Home / 13,543.68-20,316.24-4,782.72

Finding the Fourth Proportional to 13,543.68, 20,316.24 and 4,782.72

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Solution

The fourth proportional to 13,543.68, 20,316.24 and 4,782.72 is: 7,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.68 : 20,316.24 = 4,782.72 : x
  2. Step 2: Convert to fraction form
    13,543.68/20,316.24 = 4,782.72/x
  3. Step 3: Cross multiply
    13,543.68x = 20,316.24 × 4,782.72
  4. Step 4: Simplify right side
    13,543.68x = 97,166,887.37
  5. Step 5: Solve for x
    x = 97,166,887.37/13,543.68
  6. Step 6: Final answer
    x = 7,174.33

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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.