Home / 11,389.04-17,085.84-4,815.20

Finding the Fourth Proportional to 11,389.04, 17,085.84 and 4,815.20

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Solution

The fourth proportional to 11,389.04, 17,085.84 and 4,815.20 is: 7,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.04 : 17,085.84 = 4,815.20 : x
  2. Step 2: Convert to fraction form
    11,389.04/17,085.84 = 4,815.20/x
  3. Step 3: Cross multiply
    11,389.04x = 17,085.84 × 4,815.20
  4. Step 4: Simplify right side
    11,389.04x = 82,271,736.77
  5. Step 5: Solve for x
    x = 82,271,736.77/11,389.04
  6. Step 6: Final answer
    x = 7,223.76

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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.