Home / 16,919.81-23,339.95-9,845.45

Finding the Fourth Proportional to 16,919.81, 23,339.95 and 9,845.45

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Solution

The fourth proportional to 16,919.81, 23,339.95 and 9,845.45 is: 13,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.81 : 23,339.95 = 9,845.45 : x
  2. Step 2: Convert to fraction form
    16,919.81/23,339.95 = 9,845.45/x
  3. Step 3: Cross multiply
    16,919.81x = 23,339.95 × 9,845.45
  4. Step 4: Simplify right side
    16,919.81x = 229,792,310.73
  5. Step 5: Solve for x
    x = 229,792,310.73/16,919.81
  6. Step 6: Final answer
    x = 13,581.26

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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.