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Finding the Fourth Proportional to 8,911.08, 13,289.22 and 8,792.01

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Solution

The fourth proportional to 8,911.08, 13,289.22 and 8,792.01 is: 13,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.08 : 13,289.22 = 8,792.01 : x
  2. Step 2: Convert to fraction form
    8,911.08/13,289.22 = 8,792.01/x
  3. Step 3: Cross multiply
    8,911.08x = 13,289.22 × 8,792.01
  4. Step 4: Simplify right side
    8,911.08x = 116,838,955.13
  5. Step 5: Solve for x
    x = 116,838,955.13/8,911.08
  6. Step 6: Final answer
    x = 13,111.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.