Home / 18,680.90-25,779.29-10,183.10

Finding the Fourth Proportional to 18,680.90, 25,779.29 and 10,183.10

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Solution

The fourth proportional to 18,680.90, 25,779.29 and 10,183.10 is: 14,052.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.90 : 25,779.29 = 10,183.10 : x
  2. Step 2: Convert to fraction form
    18,680.90/25,779.29 = 10,183.10/x
  3. Step 3: Cross multiply
    18,680.90x = 25,779.29 × 10,183.10
  4. Step 4: Simplify right side
    18,680.90x = 262,513,088.00
  5. Step 5: Solve for x
    x = 262,513,088.00/18,680.90
  6. Step 6: Final answer
    x = 14,052.49

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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.