Home / 10,981.45-15,154.40-5,945.67

Finding the Fourth Proportional to 10,981.45, 15,154.40 and 5,945.67

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Solution

The fourth proportional to 10,981.45, 15,154.40 and 5,945.67 is: 8,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.45 : 15,154.40 = 5,945.67 : x
  2. Step 2: Convert to fraction form
    10,981.45/15,154.40 = 5,945.67/x
  3. Step 3: Cross multiply
    10,981.45x = 15,154.40 × 5,945.67
  4. Step 4: Simplify right side
    10,981.45x = 90,102,985.68
  5. Step 5: Solve for x
    x = 90,102,985.68/10,981.45
  6. Step 6: Final answer
    x = 8,205.02

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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.