Home / 9,780.28-14,672.86-3,937.36

Finding the Fourth Proportional to 9,780.28, 14,672.86 and 3,937.36

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Solution

The fourth proportional to 9,780.28, 14,672.86 and 3,937.36 is: 5,907.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.28 : 14,672.86 = 3,937.36 : x
  2. Step 2: Convert to fraction form
    9,780.28/14,672.86 = 3,937.36/x
  3. Step 3: Cross multiply
    9,780.28x = 14,672.86 × 3,937.36
  4. Step 4: Simplify right side
    9,780.28x = 57,772,332.05
  5. Step 5: Solve for x
    x = 57,772,332.05/9,780.28
  6. Step 6: Final answer
    x = 5,907.02

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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.