Home / 12,923.80-19,389.04-5,423.33

Finding the Fourth Proportional to 12,923.80, 19,389.04 and 5,423.33

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Solution

The fourth proportional to 12,923.80, 19,389.04 and 5,423.33 is: 8,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.80 : 19,389.04 = 5,423.33 : x
  2. Step 2: Convert to fraction form
    12,923.80/19,389.04 = 5,423.33/x
  3. Step 3: Cross multiply
    12,923.80x = 19,389.04 × 5,423.33
  4. Step 4: Simplify right side
    12,923.80x = 105,153,197.22
  5. Step 5: Solve for x
    x = 105,153,197.22/12,923.80
  6. Step 6: Final answer
    x = 8,136.40

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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.