Home / 19,758.30-29,640.35-6,426.91

Finding the Fourth Proportional to 19,758.30, 29,640.35 and 6,426.91

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Solution

The fourth proportional to 19,758.30, 29,640.35 and 6,426.91 is: 9,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.30 : 29,640.35 = 6,426.91 : x
  2. Step 2: Convert to fraction form
    19,758.30/29,640.35 = 6,426.91/x
  3. Step 3: Cross multiply
    19,758.30x = 29,640.35 × 6,426.91
  4. Step 4: Simplify right side
    19,758.30x = 190,495,861.82
  5. Step 5: Solve for x
    x = 190,495,861.82/19,758.30
  6. Step 6: Final answer
    x = 9,641.31

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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.