Home / 10,440.95-15,640.55-6,278.67

Finding the Fourth Proportional to 10,440.95, 15,640.55 and 6,278.67

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Solution

The fourth proportional to 10,440.95, 15,640.55 and 6,278.67 is: 9,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.95 : 15,640.55 = 6,278.67 : x
  2. Step 2: Convert to fraction form
    10,440.95/15,640.55 = 6,278.67/x
  3. Step 3: Cross multiply
    10,440.95x = 15,640.55 × 6,278.67
  4. Step 4: Simplify right side
    10,440.95x = 98,201,844.22
  5. Step 5: Solve for x
    x = 98,201,844.22/10,440.95
  6. Step 6: Final answer
    x = 9,405.46

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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.