Home / 9,137.04-12,607.75-5,358.78

Finding the Fourth Proportional to 9,137.04, 12,607.75 and 5,358.78

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Solution

The fourth proportional to 9,137.04, 12,607.75 and 5,358.78 is: 7,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.04 : 12,607.75 = 5,358.78 : x
  2. Step 2: Convert to fraction form
    9,137.04/12,607.75 = 5,358.78/x
  3. Step 3: Cross multiply
    9,137.04x = 12,607.75 × 5,358.78
  4. Step 4: Simplify right side
    9,137.04x = 67,562,158.55
  5. Step 5: Solve for x
    x = 67,562,158.55/9,137.04
  6. Step 6: Final answer
    x = 7,394.32

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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.