Home / 10,259.90-15,390.45-3,240.13

Finding the Fourth Proportional to 10,259.90, 15,390.45 and 3,240.13

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Solution

The fourth proportional to 10,259.90, 15,390.45 and 3,240.13 is: 4,860.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.90 : 15,390.45 = 3,240.13 : x
  2. Step 2: Convert to fraction form
    10,259.90/15,390.45 = 3,240.13/x
  3. Step 3: Cross multiply
    10,259.90x = 15,390.45 × 3,240.13
  4. Step 4: Simplify right side
    10,259.90x = 49,867,058.76
  5. Step 5: Solve for x
    x = 49,867,058.76/10,259.90
  6. Step 6: Final answer
    x = 4,860.38

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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.