Home / 9,515.04-13,129.70-5,536.94

Finding the Fourth Proportional to 9,515.04, 13,129.70 and 5,536.94

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Solution

The fourth proportional to 9,515.04, 13,129.70 and 5,536.94 is: 7,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.04 : 13,129.70 = 5,536.94 : x
  2. Step 2: Convert to fraction form
    9,515.04/13,129.70 = 5,536.94/x
  3. Step 3: Cross multiply
    9,515.04x = 13,129.70 × 5,536.94
  4. Step 4: Simplify right side
    9,515.04x = 72,698,361.12
  5. Step 5: Solve for x
    x = 72,698,361.12/9,515.04
  6. Step 6: Final answer
    x = 7,640.36

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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.