Home / 9,780.90-14,671.38-2,385.36

Finding the Fourth Proportional to 9,780.90, 14,671.38 and 2,385.36

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Solution

The fourth proportional to 9,780.90, 14,671.38 and 2,385.36 is: 3,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.90 : 14,671.38 = 2,385.36 : x
  2. Step 2: Convert to fraction form
    9,780.90/14,671.38 = 2,385.36/x
  3. Step 3: Cross multiply
    9,780.90x = 14,671.38 × 2,385.36
  4. Step 4: Simplify right side
    9,780.90x = 34,996,523.00
  5. Step 5: Solve for x
    x = 34,996,523.00/9,780.90
  6. Step 6: Final answer
    x = 3,578.05

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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.