Home / 12,900.26-19,349.28-9,136.48

Finding the Fourth Proportional to 12,900.26, 19,349.28 and 9,136.48

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Solution

The fourth proportional to 12,900.26, 19,349.28 and 9,136.48 is: 13,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.26 : 19,349.28 = 9,136.48 : x
  2. Step 2: Convert to fraction form
    12,900.26/19,349.28 = 9,136.48/x
  3. Step 3: Cross multiply
    12,900.26x = 19,349.28 × 9,136.48
  4. Step 4: Simplify right side
    12,900.26x = 176,784,309.73
  5. Step 5: Solve for x
    x = 176,784,309.73/12,900.26
  6. Step 6: Final answer
    x = 13,703.93

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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.