Home / 13,257.06-18,294.64-7,288.57

Finding the Fourth Proportional to 13,257.06, 18,294.64 and 7,288.57

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Solution

The fourth proportional to 13,257.06, 18,294.64 and 7,288.57 is: 10,058.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.06 : 18,294.64 = 7,288.57 : x
  2. Step 2: Convert to fraction form
    13,257.06/18,294.64 = 7,288.57/x
  3. Step 3: Cross multiply
    13,257.06x = 18,294.64 × 7,288.57
  4. Step 4: Simplify right side
    13,257.06x = 133,341,764.26
  5. Step 5: Solve for x
    x = 133,341,764.26/13,257.06
  6. Step 6: Final answer
    x = 10,058.17

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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.