Home / 8,585.19-12,880.87-5,294.45

Finding the Fourth Proportional to 8,585.19, 12,880.87 and 5,294.45

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Solution

The fourth proportional to 8,585.19, 12,880.87 and 5,294.45 is: 7,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.19 : 12,880.87 = 5,294.45 : x
  2. Step 2: Convert to fraction form
    8,585.19/12,880.87 = 5,294.45/x
  3. Step 3: Cross multiply
    8,585.19x = 12,880.87 × 5,294.45
  4. Step 4: Simplify right side
    8,585.19x = 68,197,141.14
  5. Step 5: Solve for x
    x = 68,197,141.14/8,585.19
  6. Step 6: Final answer
    x = 7,943.58

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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.