Home / 9,189.90-13,785-2,616.24

Finding the Fourth Proportional to 9,189.90, 13,785 and 2,616.24

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Solution

The fourth proportional to 9,189.90, 13,785 and 2,616.24 is: 3,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.90 : 13,785 = 2,616.24 : x
  2. Step 2: Convert to fraction form
    9,189.90/13,785 = 2,616.24/x
  3. Step 3: Cross multiply
    9,189.90x = 13,785 × 2,616.24
  4. Step 4: Simplify right side
    9,189.90x = 36,064,868.40
  5. Step 5: Solve for x
    x = 36,064,868.40/9,189.90
  6. Step 6: Final answer
    x = 3,924.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.