Home / 17,979.40-26,983.23-12,471.50

Finding the Fourth Proportional to 17,979.40, 26,983.23 and 12,471.50

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Solution

The fourth proportional to 17,979.40, 26,983.23 and 12,471.50 is: 18,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.40 : 26,983.23 = 12,471.50 : x
  2. Step 2: Convert to fraction form
    17,979.40/26,983.23 = 12,471.50/x
  3. Step 3: Cross multiply
    17,979.40x = 26,983.23 × 12,471.50
  4. Step 4: Simplify right side
    17,979.40x = 336,521,373.63
  5. Step 5: Solve for x
    x = 336,521,373.63/17,979.40
  6. Step 6: Final answer
    x = 18,717.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.