Home / 12,982.10-19,435.35-9,709.70

Finding the Fourth Proportional to 12,982.10, 19,435.35 and 9,709.70

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Solution

The fourth proportional to 12,982.10, 19,435.35 and 9,709.70 is: 14,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.10 : 19,435.35 = 9,709.70 : x
  2. Step 2: Convert to fraction form
    12,982.10/19,435.35 = 9,709.70/x
  3. Step 3: Cross multiply
    12,982.10x = 19,435.35 × 9,709.70
  4. Step 4: Simplify right side
    12,982.10x = 188,711,417.90
  5. Step 5: Solve for x
    x = 188,711,417.90/12,982.10
  6. Step 6: Final answer
    x = 14,536.28

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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.