Home / 13,587.58-20,363.64-5,259.34

Finding the Fourth Proportional to 13,587.58, 20,363.64 and 5,259.34

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Solution

The fourth proportional to 13,587.58, 20,363.64 and 5,259.34 is: 7,882.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.58 : 20,363.64 = 5,259.34 : x
  2. Step 2: Convert to fraction form
    13,587.58/20,363.64 = 5,259.34/x
  3. Step 3: Cross multiply
    13,587.58x = 20,363.64 × 5,259.34
  4. Step 4: Simplify right side
    13,587.58x = 107,099,306.40
  5. Step 5: Solve for x
    x = 107,099,306.40/13,587.58
  6. Step 6: Final answer
    x = 7,882.15

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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.