Home / 15,395.30-21,237.30-10,350.86

Finding the Fourth Proportional to 15,395.30, 21,237.30 and 10,350.86

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Solution

The fourth proportional to 15,395.30, 21,237.30 and 10,350.86 is: 14,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.30 : 21,237.30 = 10,350.86 : x
  2. Step 2: Convert to fraction form
    15,395.30/21,237.30 = 10,350.86/x
  3. Step 3: Cross multiply
    15,395.30x = 21,237.30 × 10,350.86
  4. Step 4: Simplify right side
    15,395.30x = 219,824,212.89
  5. Step 5: Solve for x
    x = 219,824,212.89/15,395.30
  6. Step 6: Final answer
    x = 14,278.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.