Home / 16,896.66-23,319.54-9,821.72

Finding the Fourth Proportional to 16,896.66, 23,319.54 and 9,821.72

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Solution

The fourth proportional to 16,896.66, 23,319.54 and 9,821.72 is: 13,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,896.66 : 23,319.54 = 9,821.72 : x
  2. Step 2: Convert to fraction form
    16,896.66/23,319.54 = 9,821.72/x
  3. Step 3: Cross multiply
    16,896.66x = 23,319.54 × 9,821.72
  4. Step 4: Simplify right side
    16,896.66x = 229,037,875.81
  5. Step 5: Solve for x
    x = 229,037,875.81/16,896.66
  6. Step 6: Final answer
    x = 13,555.22

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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.