Home / 10,981.12-15,154.80-6,266.80

Finding the Fourth Proportional to 10,981.12, 15,154.80 and 6,266.80

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Solution

The fourth proportional to 10,981.12, 15,154.80 and 6,266.80 is: 8,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.12 : 15,154.80 = 6,266.80 : x
  2. Step 2: Convert to fraction form
    10,981.12/15,154.80 = 6,266.80/x
  3. Step 3: Cross multiply
    10,981.12x = 15,154.80 × 6,266.80
  4. Step 4: Simplify right side
    10,981.12x = 94,972,100.64
  5. Step 5: Solve for x
    x = 94,972,100.64/10,981.12
  6. Step 6: Final answer
    x = 8,648.67

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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.