Home / 26,806.60-40,219.65-9,278.20

Finding the Fourth Proportional to 26,806.60, 40,219.65 and 9,278.20

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Solution

The fourth proportional to 26,806.60, 40,219.65 and 9,278.20 is: 13,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,806.60 : 40,219.65 = 9,278.20 : x
  2. Step 2: Convert to fraction form
    26,806.60/40,219.65 = 9,278.20/x
  3. Step 3: Cross multiply
    26,806.60x = 40,219.65 × 9,278.20
  4. Step 4: Simplify right side
    26,806.60x = 373,165,956.63
  5. Step 5: Solve for x
    x = 373,165,956.63/26,806.60
  6. Step 6: Final answer
    x = 13,920.67

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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.