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Finding the Fourth Proportional to 9,581.01, 13,223.07 and 5,390.07

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Solution

The fourth proportional to 9,581.01, 13,223.07 and 5,390.07 is: 7,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.01 : 13,223.07 = 5,390.07 : x
  2. Step 2: Convert to fraction form
    9,581.01/13,223.07 = 5,390.07/x
  3. Step 3: Cross multiply
    9,581.01x = 13,223.07 × 5,390.07
  4. Step 4: Simplify right side
    9,581.01x = 71,273,272.91
  5. Step 5: Solve for x
    x = 71,273,272.91/9,581.01
  6. Step 6: Final answer
    x = 7,439.01

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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.