Home / 14,261.24-19,680.64-7,887.50

Finding the Fourth Proportional to 14,261.24, 19,680.64 and 7,887.50

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Solution

The fourth proportional to 14,261.24, 19,680.64 and 7,887.50 is: 10,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.24 : 19,680.64 = 7,887.50 : x
  2. Step 2: Convert to fraction form
    14,261.24/19,680.64 = 7,887.50/x
  3. Step 3: Cross multiply
    14,261.24x = 19,680.64 × 7,887.50
  4. Step 4: Simplify right side
    14,261.24x = 155,231,077.48
  5. Step 5: Solve for x
    x = 155,231,077.48/14,261.24
  6. Step 6: Final answer
    x = 10,884.83

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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.