Home / 9,776.70-14,643.45-3,930.30

Finding the Fourth Proportional to 9,776.70, 14,643.45 and 3,930.30

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Solution

The fourth proportional to 9,776.70, 14,643.45 and 3,930.30 is: 5,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,776.70 : 14,643.45 = 3,930.30 : x
  2. Step 2: Convert to fraction form
    9,776.70/14,643.45 = 3,930.30/x
  3. Step 3: Cross multiply
    9,776.70x = 14,643.45 × 3,930.30
  4. Step 4: Simplify right side
    9,776.70x = 57,553,151.54
  5. Step 5: Solve for x
    x = 57,553,151.54/9,776.70
  6. Step 6: Final answer
    x = 5,886.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.