Home / 19,887.85-27,444.78-10,813.02

Finding the Fourth Proportional to 19,887.85, 27,444.78 and 10,813.02

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Solution

The fourth proportional to 19,887.85, 27,444.78 and 10,813.02 is: 14,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.85 : 27,444.78 = 10,813.02 : x
  2. Step 2: Convert to fraction form
    19,887.85/27,444.78 = 10,813.02/x
  3. Step 3: Cross multiply
    19,887.85x = 27,444.78 × 10,813.02
  4. Step 4: Simplify right side
    19,887.85x = 296,760,892.67
  5. Step 5: Solve for x
    x = 296,760,892.67/19,887.85
  6. Step 6: Final answer
    x = 14,921.72

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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.