Home / 16,899.36-23,319.86-9,345.78

Finding the Fourth Proportional to 16,899.36, 23,319.86 and 9,345.78

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Solution

The fourth proportional to 16,899.36, 23,319.86 and 9,345.78 is: 12,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.36 : 23,319.86 = 9,345.78 : x
  2. Step 2: Convert to fraction form
    16,899.36/23,319.86 = 9,345.78/x
  3. Step 3: Cross multiply
    16,899.36x = 23,319.86 × 9,345.78
  4. Step 4: Simplify right side
    16,899.36x = 217,942,281.19
  5. Step 5: Solve for x
    x = 217,942,281.19/16,899.36
  6. Step 6: Final answer
    x = 12,896.48

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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.