Home / 18,979.90-26,192.10-10,482.54

Finding the Fourth Proportional to 18,979.90, 26,192.10 and 10,482.54

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Solution

The fourth proportional to 18,979.90, 26,192.10 and 10,482.54 is: 14,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.90 : 26,192.10 = 10,482.54 : x
  2. Step 2: Convert to fraction form
    18,979.90/26,192.10 = 10,482.54/x
  3. Step 3: Cross multiply
    18,979.90x = 26,192.10 × 10,482.54
  4. Step 4: Simplify right side
    18,979.90x = 274,559,735.93
  5. Step 5: Solve for x
    x = 274,559,735.93/18,979.90
  6. Step 6: Final answer
    x = 14,465.82

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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.