Home / 26,119.86-39,145.56-12,078.10

Finding the Fourth Proportional to 26,119.86, 39,145.56 and 12,078.10

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Solution

The fourth proportional to 26,119.86, 39,145.56 and 12,078.10 is: 18,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,119.86 : 39,145.56 = 12,078.10 : x
  2. Step 2: Convert to fraction form
    26,119.86/39,145.56 = 12,078.10/x
  3. Step 3: Cross multiply
    26,119.86x = 39,145.56 × 12,078.10
  4. Step 4: Simplify right side
    26,119.86x = 472,803,988.24
  5. Step 5: Solve for x
    x = 472,803,988.24/26,119.86
  6. Step 6: Final answer
    x = 18,101.32

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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.