Home / 10,421.12-15,626.94-4,495.20

Finding the Fourth Proportional to 10,421.12, 15,626.94 and 4,495.20

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Solution

The fourth proportional to 10,421.12, 15,626.94 and 4,495.20 is: 6,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.12 : 15,626.94 = 4,495.20 : x
  2. Step 2: Convert to fraction form
    10,421.12/15,626.94 = 4,495.20/x
  3. Step 3: Cross multiply
    10,421.12x = 15,626.94 × 4,495.20
  4. Step 4: Simplify right side
    10,421.12x = 70,246,220.69
  5. Step 5: Solve for x
    x = 70,246,220.69/10,421.12
  6. Step 6: Final answer
    x = 6,740.76

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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.