Home / 13,877.55-20,814.69-5,557.23

Finding the Fourth Proportional to 13,877.55, 20,814.69 and 5,557.23

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Solution

The fourth proportional to 13,877.55, 20,814.69 and 5,557.23 is: 8,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.55 : 20,814.69 = 5,557.23 : x
  2. Step 2: Convert to fraction form
    13,877.55/20,814.69 = 5,557.23/x
  3. Step 3: Cross multiply
    13,877.55x = 20,814.69 × 5,557.23
  4. Step 4: Simplify right side
    13,877.55x = 115,672,019.71
  5. Step 5: Solve for x
    x = 115,672,019.71/13,877.55
  6. Step 6: Final answer
    x = 8,335.19

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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.