Home / 14,422.72-19,903.71-8,135.50

Finding the Fourth Proportional to 14,422.72, 19,903.71 and 8,135.50

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Solution

The fourth proportional to 14,422.72, 19,903.71 and 8,135.50 is: 11,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.72 : 19,903.71 = 8,135.50 : x
  2. Step 2: Convert to fraction form
    14,422.72/19,903.71 = 8,135.50/x
  3. Step 3: Cross multiply
    14,422.72x = 19,903.71 × 8,135.50
  4. Step 4: Simplify right side
    14,422.72x = 161,926,632.71
  5. Step 5: Solve for x
    x = 161,926,632.71/14,422.72
  6. Step 6: Final answer
    x = 11,227.19

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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.