Home / 13,942.89-19,240.79-7,569.32

Finding the Fourth Proportional to 13,942.89, 19,240.79 and 7,569.32

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Solution

The fourth proportional to 13,942.89, 19,240.79 and 7,569.32 is: 10,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.89 : 19,240.79 = 7,569.32 : x
  2. Step 2: Convert to fraction form
    13,942.89/19,240.79 = 7,569.32/x
  3. Step 3: Cross multiply
    13,942.89x = 19,240.79 × 7,569.32
  4. Step 4: Simplify right side
    13,942.89x = 145,639,562.51
  5. Step 5: Solve for x
    x = 145,639,562.51/13,942.89
  6. Step 6: Final answer
    x = 10,445.44

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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.