Home / 9,421.80-13,002.04-5,230.08

Finding the Fourth Proportional to 9,421.80, 13,002.04 and 5,230.08

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Solution

The fourth proportional to 9,421.80, 13,002.04 and 5,230.08 is: 7,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.80 : 13,002.04 = 5,230.08 : x
  2. Step 2: Convert to fraction form
    9,421.80/13,002.04 = 5,230.08/x
  3. Step 3: Cross multiply
    9,421.80x = 13,002.04 × 5,230.08
  4. Step 4: Simplify right side
    9,421.80x = 68,001,709.36
  5. Step 5: Solve for x
    x = 68,001,709.36/9,421.80
  6. Step 6: Final answer
    x = 7,217.49

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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.