Home / 12,190.15-16,816.89-10,693.45

Finding the Fourth Proportional to 12,190.15, 16,816.89 and 10,693.45

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Solution

The fourth proportional to 12,190.15, 16,816.89 and 10,693.45 is: 14,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.15 : 16,816.89 = 10,693.45 : x
  2. Step 2: Convert to fraction form
    12,190.15/16,816.89 = 10,693.45/x
  3. Step 3: Cross multiply
    12,190.15x = 16,816.89 × 10,693.45
  4. Step 4: Simplify right side
    12,190.15x = 179,830,572.37
  5. Step 5: Solve for x
    x = 179,830,572.37/12,190.15
  6. Step 6: Final answer
    x = 14,752.12

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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.