Home / 13,580.45-20,401.86-9,587.01

Finding the Fourth Proportional to 13,580.45, 20,401.86 and 9,587.01

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Solution

The fourth proportional to 13,580.45, 20,401.86 and 9,587.01 is: 14,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.45 : 20,401.86 = 9,587.01 : x
  2. Step 2: Convert to fraction form
    13,580.45/20,401.86 = 9,587.01/x
  3. Step 3: Cross multiply
    13,580.45x = 20,401.86 × 9,587.01
  4. Step 4: Simplify right side
    13,580.45x = 195,592,835.84
  5. Step 5: Solve for x
    x = 195,592,835.84/13,580.45
  6. Step 6: Final answer
    x = 14,402.53

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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.