Home / 8,605.64-11,880.56-5,423.04

Finding the Fourth Proportional to 8,605.64, 11,880.56 and 5,423.04

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Solution

The fourth proportional to 8,605.64, 11,880.56 and 5,423.04 is: 7,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.64 : 11,880.56 = 5,423.04 : x
  2. Step 2: Convert to fraction form
    8,605.64/11,880.56 = 5,423.04/x
  3. Step 3: Cross multiply
    8,605.64x = 11,880.56 × 5,423.04
  4. Step 4: Simplify right side
    8,605.64x = 64,428,724.99
  5. Step 5: Solve for x
    x = 64,428,724.99/8,605.64
  6. Step 6: Final answer
    x = 7,486.81

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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.