Home / 13,854.69-19,117.26-7,886.48

Finding the Fourth Proportional to 13,854.69, 19,117.26 and 7,886.48

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Solution

The fourth proportional to 13,854.69, 19,117.26 and 7,886.48 is: 10,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.69 : 19,117.26 = 7,886.48 : x
  2. Step 2: Convert to fraction form
    13,854.69/19,117.26 = 7,886.48/x
  3. Step 3: Cross multiply
    13,854.69x = 19,117.26 × 7,886.48
  4. Step 4: Simplify right side
    13,854.69x = 150,767,793.06
  5. Step 5: Solve for x
    x = 150,767,793.06/13,854.69
  6. Step 6: Final answer
    x = 10,882.08

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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.