Home / 11,209.04-15,465.12-6,493.20

Finding the Fourth Proportional to 11,209.04, 15,465.12 and 6,493.20

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Solution

The fourth proportional to 11,209.04, 15,465.12 and 6,493.20 is: 8,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.04 : 15,465.12 = 6,493.20 : x
  2. Step 2: Convert to fraction form
    11,209.04/15,465.12 = 6,493.20/x
  3. Step 3: Cross multiply
    11,209.04x = 15,465.12 × 6,493.20
  4. Step 4: Simplify right side
    11,209.04x = 100,418,117.18
  5. Step 5: Solve for x
    x = 100,418,117.18/11,209.04
  6. Step 6: Final answer
    x = 8,958.67

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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.