Home / 14,455.79-19,952.32-9,411.22

Finding the Fourth Proportional to 14,455.79, 19,952.32 and 9,411.22

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Solution

The fourth proportional to 14,455.79, 19,952.32 and 9,411.22 is: 12,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.79 : 19,952.32 = 9,411.22 : x
  2. Step 2: Convert to fraction form
    14,455.79/19,952.32 = 9,411.22/x
  3. Step 3: Cross multiply
    14,455.79x = 19,952.32 × 9,411.22
  4. Step 4: Simplify right side
    14,455.79x = 187,775,625.97
  5. Step 5: Solve for x
    x = 187,775,625.97/14,455.79
  6. Step 6: Final answer
    x = 12,989.65

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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.