Home / 13,603.74-18,771.66-7,634.04

Finding the Fourth Proportional to 13,603.74, 18,771.66 and 7,634.04

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Solution

The fourth proportional to 13,603.74, 18,771.66 and 7,634.04 is: 10,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.74 : 18,771.66 = 7,634.04 : x
  2. Step 2: Convert to fraction form
    13,603.74/18,771.66 = 7,634.04/x
  3. Step 3: Cross multiply
    13,603.74x = 18,771.66 × 7,634.04
  4. Step 4: Simplify right side
    13,603.74x = 143,303,603.31
  5. Step 5: Solve for x
    x = 143,303,603.31/13,603.74
  6. Step 6: Final answer
    x = 10,534.13

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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.