Home / 16,720.38-23,073.81-9,166.50

Finding the Fourth Proportional to 16,720.38, 23,073.81 and 9,166.50

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Solution

The fourth proportional to 16,720.38, 23,073.81 and 9,166.50 is: 12,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.38 : 23,073.81 = 9,166.50 : x
  2. Step 2: Convert to fraction form
    16,720.38/23,073.81 = 9,166.50/x
  3. Step 3: Cross multiply
    16,720.38x = 23,073.81 × 9,166.50
  4. Step 4: Simplify right side
    16,720.38x = 211,506,079.37
  5. Step 5: Solve for x
    x = 211,506,079.37/16,720.38
  6. Step 6: Final answer
    x = 12,649.60

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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.