Home / 19,756.57-29,650.42-8,670.91

Finding the Fourth Proportional to 19,756.57, 29,650.42 and 8,670.91

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Solution

The fourth proportional to 19,756.57, 29,650.42 and 8,670.91 is: 13,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,756.57 : 29,650.42 = 8,670.91 : x
  2. Step 2: Convert to fraction form
    19,756.57/29,650.42 = 8,670.91/x
  3. Step 3: Cross multiply
    19,756.57x = 29,650.42 × 8,670.91
  4. Step 4: Simplify right side
    19,756.57x = 257,096,027.48
  5. Step 5: Solve for x
    x = 257,096,027.48/19,756.57
  6. Step 6: Final answer
    x = 13,013.19

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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.