Home / 10,279.09-15,420.24-4,355.99

Finding the Fourth Proportional to 10,279.09, 15,420.24 and 4,355.99

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Solution

The fourth proportional to 10,279.09, 15,420.24 and 4,355.99 is: 6,534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.09 : 15,420.24 = 4,355.99 : x
  2. Step 2: Convert to fraction form
    10,279.09/15,420.24 = 4,355.99/x
  3. Step 3: Cross multiply
    10,279.09x = 15,420.24 × 4,355.99
  4. Step 4: Simplify right side
    10,279.09x = 67,170,411.24
  5. Step 5: Solve for x
    x = 67,170,411.24/10,279.09
  6. Step 6: Final answer
    x = 6,534.67

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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.