Home / 12,900.01-19,348.90-9,136.23

Finding the Fourth Proportional to 12,900.01, 19,348.90 and 9,136.23

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Solution

The fourth proportional to 12,900.01, 19,348.90 and 9,136.23 is: 13,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.01 : 19,348.90 = 9,136.23 : x
  2. Step 2: Convert to fraction form
    12,900.01/19,348.90 = 9,136.23/x
  3. Step 3: Cross multiply
    12,900.01x = 19,348.90 × 9,136.23
  4. Step 4: Simplify right side
    12,900.01x = 176,776,000.65
  5. Step 5: Solve for x
    x = 176,776,000.65/12,900.01
  6. Step 6: Final answer
    x = 13,703.56

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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.