Home / 16,905.10-23,330.55-9,353.20

Finding the Fourth Proportional to 16,905.10, 23,330.55 and 9,353.20

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Solution

The fourth proportional to 16,905.10, 23,330.55 and 9,353.20 is: 12,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.10 : 23,330.55 = 9,353.20 : x
  2. Step 2: Convert to fraction form
    16,905.10/23,330.55 = 9,353.20/x
  3. Step 3: Cross multiply
    16,905.10x = 23,330.55 × 9,353.20
  4. Step 4: Simplify right side
    16,905.10x = 218,215,300.26
  5. Step 5: Solve for x
    x = 218,215,300.26/16,905.10
  6. Step 6: Final answer
    x = 12,908.25

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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.