Home / 16,905.08-23,328.56-9,351.20

Finding the Fourth Proportional to 16,905.08, 23,328.56 and 9,351.20

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Solution

The fourth proportional to 16,905.08, 23,328.56 and 9,351.20 is: 12,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.08 : 23,328.56 = 9,351.20 : x
  2. Step 2: Convert to fraction form
    16,905.08/23,328.56 = 9,351.20/x
  3. Step 3: Cross multiply
    16,905.08x = 23,328.56 × 9,351.20
  4. Step 4: Simplify right side
    16,905.08x = 218,149,866.87
  5. Step 5: Solve for x
    x = 218,149,866.87/16,905.08
  6. Step 6: Final answer
    x = 12,904.40

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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.