Home / 13,106.32-19,640.28-7,561.36

Finding the Fourth Proportional to 13,106.32, 19,640.28 and 7,561.36

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Solution

The fourth proportional to 13,106.32, 19,640.28 and 7,561.36 is: 11,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.32 : 19,640.28 = 7,561.36 : x
  2. Step 2: Convert to fraction form
    13,106.32/19,640.28 = 7,561.36/x
  3. Step 3: Cross multiply
    13,106.32x = 19,640.28 × 7,561.36
  4. Step 4: Simplify right side
    13,106.32x = 148,507,227.58
  5. Step 5: Solve for x
    x = 148,507,227.58/13,106.32
  6. Step 6: Final answer
    x = 11,330.96

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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.