Home / 13,255.93-18,294.02-7,288.12

Finding the Fourth Proportional to 13,255.93, 18,294.02 and 7,288.12

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Solution

The fourth proportional to 13,255.93, 18,294.02 and 7,288.12 is: 10,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.93 : 18,294.02 = 7,288.12 : x
  2. Step 2: Convert to fraction form
    13,255.93/18,294.02 = 7,288.12/x
  3. Step 3: Cross multiply
    13,255.93x = 18,294.02 × 7,288.12
  4. Step 4: Simplify right side
    13,255.93x = 133,329,013.04
  5. Step 5: Solve for x
    x = 133,329,013.04/13,255.93
  6. Step 6: Final answer
    x = 10,058.07

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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.