Home / 13,567.19-18,722.17-7,902.11

Finding the Fourth Proportional to 13,567.19, 18,722.17 and 7,902.11

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Solution

The fourth proportional to 13,567.19, 18,722.17 and 7,902.11 is: 10,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.19 : 18,722.17 = 7,902.11 : x
  2. Step 2: Convert to fraction form
    13,567.19/18,722.17 = 7,902.11/x
  3. Step 3: Cross multiply
    13,567.19x = 18,722.17 × 7,902.11
  4. Step 4: Simplify right side
    13,567.19x = 147,944,646.78
  5. Step 5: Solve for x
    x = 147,944,646.78/13,567.19
  6. Step 6: Final answer
    x = 10,904.59

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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.