Home / 16,879.92-23,261.40-12,155.28

Finding the Fourth Proportional to 16,879.92, 23,261.40 and 12,155.28

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Solution

The fourth proportional to 16,879.92, 23,261.40 and 12,155.28 is: 16,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.92 : 23,261.40 = 12,155.28 : x
  2. Step 2: Convert to fraction form
    16,879.92/23,261.40 = 12,155.28/x
  3. Step 3: Cross multiply
    16,879.92x = 23,261.40 × 12,155.28
  4. Step 4: Simplify right side
    16,879.92x = 282,748,830.19
  5. Step 5: Solve for x
    x = 282,748,830.19/16,879.92
  6. Step 6: Final answer
    x = 16,750.60

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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.