Home / 19,158.71-26,438.75-10,775.21

Finding the Fourth Proportional to 19,158.71, 26,438.75 and 10,775.21

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Solution

The fourth proportional to 19,158.71, 26,438.75 and 10,775.21 is: 14,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.71 : 26,438.75 = 10,775.21 : x
  2. Step 2: Convert to fraction form
    19,158.71/26,438.75 = 10,775.21/x
  3. Step 3: Cross multiply
    19,158.71x = 26,438.75 × 10,775.21
  4. Step 4: Simplify right side
    19,158.71x = 284,882,897.32
  5. Step 5: Solve for x
    x = 284,882,897.32/19,158.71
  6. Step 6: Final answer
    x = 14,869.63

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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.