Home / 19,660.90-29,498.64-9,136.06

Finding the Fourth Proportional to 19,660.90, 29,498.64 and 9,136.06

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Solution

The fourth proportional to 19,660.90, 29,498.64 and 9,136.06 is: 13,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.90 : 29,498.64 = 9,136.06 : x
  2. Step 2: Convert to fraction form
    19,660.90/29,498.64 = 9,136.06/x
  3. Step 3: Cross multiply
    19,660.90x = 29,498.64 × 9,136.06
  4. Step 4: Simplify right side
    19,660.90x = 269,501,344.96
  5. Step 5: Solve for x
    x = 269,501,344.96/19,660.90
  6. Step 6: Final answer
    x = 13,707.48

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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.