Home / 13,784.33-19,014.51-8,475.39

Finding the Fourth Proportional to 13,784.33, 19,014.51 and 8,475.39

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Solution

The fourth proportional to 13,784.33, 19,014.51 and 8,475.39 is: 11,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.33 : 19,014.51 = 8,475.39 : x
  2. Step 2: Convert to fraction form
    13,784.33/19,014.51 = 8,475.39/x
  3. Step 3: Cross multiply
    13,784.33x = 19,014.51 × 8,475.39
  4. Step 4: Simplify right side
    13,784.33x = 161,155,419.69
  5. Step 5: Solve for x
    x = 161,155,419.69/13,784.33
  6. Step 6: Final answer
    x = 11,691.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.