Home / 14,260.71-19,679.65-7,887.59

Finding the Fourth Proportional to 14,260.71, 19,679.65 and 7,887.59

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Solution

The fourth proportional to 14,260.71, 19,679.65 and 7,887.59 is: 10,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.71 : 19,679.65 = 7,887.59 : x
  2. Step 2: Convert to fraction form
    14,260.71/19,679.65 = 7,887.59/x
  3. Step 3: Cross multiply
    14,260.71x = 19,679.65 × 7,887.59
  4. Step 4: Simplify right side
    14,260.71x = 155,225,010.54
  5. Step 5: Solve for x
    x = 155,225,010.54/14,260.71
  6. Step 6: Final answer
    x = 10,884.80

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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.