Home / 13,001.28-19,502.72-5,209.08

Finding the Fourth Proportional to 13,001.28, 19,502.72 and 5,209.08

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Solution

The fourth proportional to 13,001.28, 19,502.72 and 5,209.08 is: 7,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.28 : 19,502.72 = 5,209.08 : x
  2. Step 2: Convert to fraction form
    13,001.28/19,502.72 = 5,209.08/x
  3. Step 3: Cross multiply
    13,001.28x = 19,502.72 × 5,209.08
  4. Step 4: Simplify right side
    13,001.28x = 101,591,228.70
  5. Step 5: Solve for x
    x = 101,591,228.70/13,001.28
  6. Step 6: Final answer
    x = 7,813.94

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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.