Home / 13,933.09-19,228.40-7,645.47

Finding the Fourth Proportional to 13,933.09, 19,228.40 and 7,645.47

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Solution

The fourth proportional to 13,933.09, 19,228.40 and 7,645.47 is: 10,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.09 : 19,228.40 = 7,645.47 : x
  2. Step 2: Convert to fraction form
    13,933.09/19,228.40 = 7,645.47/x
  3. Step 3: Cross multiply
    13,933.09x = 19,228.40 × 7,645.47
  4. Step 4: Simplify right side
    13,933.09x = 147,010,155.35
  5. Step 5: Solve for x
    x = 147,010,155.35/13,933.09
  6. Step 6: Final answer
    x = 10,551.15

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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.