Home / 13,587.33-18,750.28-7,618.98

Finding the Fourth Proportional to 13,587.33, 18,750.28 and 7,618.98

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Solution

The fourth proportional to 13,587.33, 18,750.28 and 7,618.98 is: 10,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.33 : 18,750.28 = 7,618.98 : x
  2. Step 2: Convert to fraction form
    13,587.33/18,750.28 = 7,618.98/x
  3. Step 3: Cross multiply
    13,587.33x = 18,750.28 × 7,618.98
  4. Step 4: Simplify right side
    13,587.33x = 142,858,008.31
  5. Step 5: Solve for x
    x = 142,858,008.31/13,587.33
  6. Step 6: Final answer
    x = 10,514.06

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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.