Home / 13,845.20-19,106.55-7,557.57

Finding the Fourth Proportional to 13,845.20, 19,106.55 and 7,557.57

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Solution

The fourth proportional to 13,845.20, 19,106.55 and 7,557.57 is: 10,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.20 : 19,106.55 = 7,557.57 : x
  2. Step 2: Convert to fraction form
    13,845.20/19,106.55 = 7,557.57/x
  3. Step 3: Cross multiply
    13,845.20x = 19,106.55 × 7,557.57
  4. Step 4: Simplify right side
    13,845.20x = 144,399,089.08
  5. Step 5: Solve for x
    x = 144,399,089.08/13,845.20
  6. Step 6: Final answer
    x = 10,429.55

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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.