Home / 18,948.10-26,147.74-10,450.40

Finding the Fourth Proportional to 18,948.10, 26,147.74 and 10,450.40

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Solution

The fourth proportional to 18,948.10, 26,147.74 and 10,450.40 is: 14,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.10 : 26,147.74 = 10,450.40 : x
  2. Step 2: Convert to fraction form
    18,948.10/26,147.74 = 10,450.40/x
  3. Step 3: Cross multiply
    18,948.10x = 26,147.74 × 10,450.40
  4. Step 4: Simplify right side
    18,948.10x = 273,254,342.10
  5. Step 5: Solve for x
    x = 273,254,342.10/18,948.10
  6. Step 6: Final answer
    x = 14,421.20

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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.