Home / 18,913.07-26,103.20-10,960.13

Finding the Fourth Proportional to 18,913.07, 26,103.20 and 10,960.13

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Solution

The fourth proportional to 18,913.07, 26,103.20 and 10,960.13 is: 15,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.07 : 26,103.20 = 10,960.13 : x
  2. Step 2: Convert to fraction form
    18,913.07/26,103.20 = 10,960.13/x
  3. Step 3: Cross multiply
    18,913.07x = 26,103.20 × 10,960.13
  4. Step 4: Simplify right side
    18,913.07x = 286,094,280.10
  5. Step 5: Solve for x
    x = 286,094,280.10/18,913.07
  6. Step 6: Final answer
    x = 15,126.81

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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.