Home / 17,986.10-26,979.15-10,210.10

Finding the Fourth Proportional to 17,986.10, 26,979.15 and 10,210.10

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Solution

The fourth proportional to 17,986.10, 26,979.15 and 10,210.10 is: 15,315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.10 : 26,979.15 = 10,210.10 : x
  2. Step 2: Convert to fraction form
    17,986.10/26,979.15 = 10,210.10/x
  3. Step 3: Cross multiply
    17,986.10x = 26,979.15 × 10,210.10
  4. Step 4: Simplify right side
    17,986.10x = 275,459,819.42
  5. Step 5: Solve for x
    x = 275,459,819.42/17,986.10
  6. Step 6: Final answer
    x = 15,315.15

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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.