Home / 14,122.07-21,166.67-10,389.75

Finding the Fourth Proportional to 14,122.07, 21,166.67 and 10,389.75

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Solution

The fourth proportional to 14,122.07, 21,166.67 and 10,389.75 is: 15,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.07 : 21,166.67 = 10,389.75 : x
  2. Step 2: Convert to fraction form
    14,122.07/21,166.67 = 10,389.75/x
  3. Step 3: Cross multiply
    14,122.07x = 21,166.67 × 10,389.75
  4. Step 4: Simplify right side
    14,122.07x = 219,916,435.61
  5. Step 5: Solve for x
    x = 219,916,435.61/14,122.07
  6. Step 6: Final answer
    x = 15,572.53

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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.