Home / 12,750.60-17,590.90-9,401.34

Finding the Fourth Proportional to 12,750.60, 17,590.90 and 9,401.34

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Solution

The fourth proportional to 12,750.60, 17,590.90 and 9,401.34 is: 12,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.60 : 17,590.90 = 9,401.34 : x
  2. Step 2: Convert to fraction form
    12,750.60/17,590.90 = 9,401.34/x
  3. Step 3: Cross multiply
    12,750.60x = 17,590.90 × 9,401.34
  4. Step 4: Simplify right side
    12,750.60x = 165,378,031.81
  5. Step 5: Solve for x
    x = 165,378,031.81/12,750.60
  6. Step 6: Final answer
    x = 12,970.22

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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.