Home / 9,477.43-13,078.88-5,285.95

Finding the Fourth Proportional to 9,477.43, 13,078.88 and 5,285.95

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Solution

The fourth proportional to 9,477.43, 13,078.88 and 5,285.95 is: 7,294.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.43 : 13,078.88 = 5,285.95 : x
  2. Step 2: Convert to fraction form
    9,477.43/13,078.88 = 5,285.95/x
  3. Step 3: Cross multiply
    9,477.43x = 13,078.88 × 5,285.95
  4. Step 4: Simplify right side
    9,477.43x = 69,134,305.74
  5. Step 5: Solve for x
    x = 69,134,305.74/9,477.43
  6. Step 6: Final answer
    x = 7,294.63

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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.