Home / 26,763.66-40,153.59-10,128.79

Finding the Fourth Proportional to 26,763.66, 40,153.59 and 10,128.79

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Solution

The fourth proportional to 26,763.66, 40,153.59 and 10,128.79 is: 15,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,763.66 : 40,153.59 = 10,128.79 : x
  2. Step 2: Convert to fraction form
    26,763.66/40,153.59 = 10,128.79/x
  3. Step 3: Cross multiply
    26,763.66x = 40,153.59 × 10,128.79
  4. Step 4: Simplify right side
    26,763.66x = 406,707,280.86
  5. Step 5: Solve for x
    x = 406,707,280.86/26,763.66
  6. Step 6: Final answer
    x = 15,196.25

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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.