Home / 18,913.07-26,099.91-10,955.12

Finding the Fourth Proportional to 18,913.07, 26,099.91 and 10,955.12

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Solution

The fourth proportional to 18,913.07, 26,099.91 and 10,955.12 is: 15,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.07 : 26,099.91 = 10,955.12 : x
  2. Step 2: Convert to fraction form
    18,913.07/26,099.91 = 10,955.12/x
  3. Step 3: Cross multiply
    18,913.07x = 26,099.91 × 10,955.12
  4. Step 4: Simplify right side
    18,913.07x = 285,927,515.54
  5. Step 5: Solve for x
    x = 285,927,515.54/18,913.07
  6. Step 6: Final answer
    x = 15,117.99

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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.