Home / 12,130.99-18,167.33-6,921.07

Finding the Fourth Proportional to 12,130.99, 18,167.33 and 6,921.07

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Solution

The fourth proportional to 12,130.99, 18,167.33 and 6,921.07 is: 10,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.99 : 18,167.33 = 6,921.07 : x
  2. Step 2: Convert to fraction form
    12,130.99/18,167.33 = 6,921.07/x
  3. Step 3: Cross multiply
    12,130.99x = 18,167.33 × 6,921.07
  4. Step 4: Simplify right side
    12,130.99x = 125,737,328.04
  5. Step 5: Solve for x
    x = 125,737,328.04/12,130.99
  6. Step 6: Final answer
    x = 10,364.97

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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.