Home / 9,329.04-12,874.08-5,137.28

Finding the Fourth Proportional to 9,329.04, 12,874.08 and 5,137.28

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Solution

The fourth proportional to 9,329.04, 12,874.08 and 5,137.28 is: 7,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.04 : 12,874.08 = 5,137.28 : x
  2. Step 2: Convert to fraction form
    9,329.04/12,874.08 = 5,137.28/x
  3. Step 3: Cross multiply
    9,329.04x = 12,874.08 × 5,137.28
  4. Step 4: Simplify right side
    9,329.04x = 66,137,753.70
  5. Step 5: Solve for x
    x = 66,137,753.70/9,329.04
  6. Step 6: Final answer
    x = 7,089.45

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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.