Home / 18,926.79-26,117.58-10,968.86

Finding the Fourth Proportional to 18,926.79, 26,117.58 and 10,968.86

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Solution

The fourth proportional to 18,926.79, 26,117.58 and 10,968.86 is: 15,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.79 : 26,117.58 = 10,968.86 : x
  2. Step 2: Convert to fraction form
    18,926.79/26,117.58 = 10,968.86/x
  3. Step 3: Cross multiply
    18,926.79x = 26,117.58 × 10,968.86
  4. Step 4: Simplify right side
    18,926.79x = 286,479,947.97
  5. Step 5: Solve for x
    x = 286,479,947.97/18,926.79
  6. Step 6: Final answer
    x = 15,136.21

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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.