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Finding the Fourth Proportional to 8,969.04, 13,361.58 and 8,740.08

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Solution

The fourth proportional to 8,969.04, 13,361.58 and 8,740.08 is: 13,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.04 : 13,361.58 = 8,740.08 : x
  2. Step 2: Convert to fraction form
    8,969.04/13,361.58 = 8,740.08/x
  3. Step 3: Cross multiply
    8,969.04x = 13,361.58 × 8,740.08
  4. Step 4: Simplify right side
    8,969.04x = 116,781,278.13
  5. Step 5: Solve for x
    x = 116,781,278.13/8,969.04
  6. Step 6: Final answer
    x = 13,020.49

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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.