Home / 16,782.74-25,139.55-9,840.50

Finding the Fourth Proportional to 16,782.74, 25,139.55 and 9,840.50

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Solution

The fourth proportional to 16,782.74, 25,139.55 and 9,840.50 is: 14,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.74 : 25,139.55 = 9,840.50 : x
  2. Step 2: Convert to fraction form
    16,782.74/25,139.55 = 9,840.50/x
  3. Step 3: Cross multiply
    16,782.74x = 25,139.55 × 9,840.50
  4. Step 4: Simplify right side
    16,782.74x = 247,385,741.78
  5. Step 5: Solve for x
    x = 247,385,741.78/16,782.74
  6. Step 6: Final answer
    x = 14,740.49

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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.