Home / 9,120.74-12,588.99-5,942

Finding the Fourth Proportional to 9,120.74, 12,588.99 and 5,942

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Solution

The fourth proportional to 9,120.74, 12,588.99 and 5,942 is: 8,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.74 : 12,588.99 = 5,942 : x
  2. Step 2: Convert to fraction form
    9,120.74/12,588.99 = 5,942/x
  3. Step 3: Cross multiply
    9,120.74x = 12,588.99 × 5,942
  4. Step 4: Simplify right side
    9,120.74x = 74,803,778.58
  5. Step 5: Solve for x
    x = 74,803,778.58/9,120.74
  6. Step 6: Final answer
    x = 8,201.50

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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.