Home / 13,256.87-18,294.36-7,288.48

Finding the Fourth Proportional to 13,256.87, 18,294.36 and 7,288.48

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Solution

The fourth proportional to 13,256.87, 18,294.36 and 7,288.48 is: 10,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.87 : 18,294.36 = 7,288.48 : x
  2. Step 2: Convert to fraction form
    13,256.87/18,294.36 = 7,288.48/x
  3. Step 3: Cross multiply
    13,256.87x = 18,294.36 × 7,288.48
  4. Step 4: Simplify right side
    13,256.87x = 133,338,072.51
  5. Step 5: Solve for x
    x = 133,338,072.51/13,256.87
  6. Step 6: Final answer
    x = 10,058.04

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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.