Home / 13,845.38-19,106.63-7,557.75

Finding the Fourth Proportional to 13,845.38, 19,106.63 and 7,557.75

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Solution

The fourth proportional to 13,845.38, 19,106.63 and 7,557.75 is: 10,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.38 : 19,106.63 = 7,557.75 : x
  2. Step 2: Convert to fraction form
    13,845.38/19,106.63 = 7,557.75/x
  3. Step 3: Cross multiply
    13,845.38x = 19,106.63 × 7,557.75
  4. Step 4: Simplify right side
    13,845.38x = 144,403,095.09
  5. Step 5: Solve for x
    x = 144,403,095.09/13,845.38
  6. Step 6: Final answer
    x = 10,429.70

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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.