Home / 11,433.06-15,780.15-7,240.50

Finding the Fourth Proportional to 11,433.06, 15,780.15 and 7,240.50

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Solution

The fourth proportional to 11,433.06, 15,780.15 and 7,240.50 is: 9,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.06 : 15,780.15 = 7,240.50 : x
  2. Step 2: Convert to fraction form
    11,433.06/15,780.15 = 7,240.50/x
  3. Step 3: Cross multiply
    11,433.06x = 15,780.15 × 7,240.50
  4. Step 4: Simplify right side
    11,433.06x = 114,256,176.08
  5. Step 5: Solve for x
    x = 114,256,176.08/11,433.06
  6. Step 6: Final answer
    x = 9,993.49

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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.