Home / 17,139.49-23,652.87-12,112.58

Finding the Fourth Proportional to 17,139.49, 23,652.87 and 12,112.58

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Solution

The fourth proportional to 17,139.49, 23,652.87 and 12,112.58 is: 16,715.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.49 : 23,652.87 = 12,112.58 : x
  2. Step 2: Convert to fraction form
    17,139.49/23,652.87 = 12,112.58/x
  3. Step 3: Cross multiply
    17,139.49x = 23,652.87 × 12,112.58
  4. Step 4: Simplify right side
    17,139.49x = 286,497,280.10
  5. Step 5: Solve for x
    x = 286,497,280.10/17,139.49
  6. Step 6: Final answer
    x = 16,715.62

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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.