Home / 9,789.90-14,686.39-3,214.59

Finding the Fourth Proportional to 9,789.90, 14,686.39 and 3,214.59

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Solution

The fourth proportional to 9,789.90, 14,686.39 and 3,214.59 is: 4,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.90 : 14,686.39 = 3,214.59 : x
  2. Step 2: Convert to fraction form
    9,789.90/14,686.39 = 3,214.59/x
  3. Step 3: Cross multiply
    9,789.90x = 14,686.39 × 3,214.59
  4. Step 4: Simplify right side
    9,789.90x = 47,210,706.36
  5. Step 5: Solve for x
    x = 47,210,706.36/9,789.90
  6. Step 6: Final answer
    x = 4,822.39

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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.