Home / 19,758.09-29,639.85-8,068.57

Finding the Fourth Proportional to 19,758.09, 29,639.85 and 8,068.57

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Solution

The fourth proportional to 19,758.09, 29,639.85 and 8,068.57 is: 12,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.09 : 29,639.85 = 8,068.57 : x
  2. Step 2: Convert to fraction form
    19,758.09/29,639.85 = 8,068.57/x
  3. Step 3: Cross multiply
    19,758.09x = 29,639.85 × 8,068.57
  4. Step 4: Simplify right side
    19,758.09x = 239,151,204.51
  5. Step 5: Solve for x
    x = 239,151,204.51/19,758.09
  6. Step 6: Final answer
    x = 12,103.96

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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.