Home / 11,133.80-15,361.49-6,417.18

Finding the Fourth Proportional to 11,133.80, 15,361.49 and 6,417.18

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Solution

The fourth proportional to 11,133.80, 15,361.49 and 6,417.18 is: 8,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.80 : 15,361.49 = 6,417.18 : x
  2. Step 2: Convert to fraction form
    11,133.80/15,361.49 = 6,417.18/x
  3. Step 3: Cross multiply
    11,133.80x = 15,361.49 × 6,417.18
  4. Step 4: Simplify right side
    11,133.80x = 98,577,446.40
  5. Step 5: Solve for x
    x = 98,577,446.40/11,133.80
  6. Step 6: Final answer
    x = 8,853.89

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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.