Home / 14,260.37-19,678.41-7,886.79

Finding the Fourth Proportional to 14,260.37, 19,678.41 and 7,886.79

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Solution

The fourth proportional to 14,260.37, 19,678.41 and 7,886.79 is: 10,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.37 : 19,678.41 = 7,886.79 : x
  2. Step 2: Convert to fraction form
    14,260.37/19,678.41 = 7,886.79/x
  3. Step 3: Cross multiply
    14,260.37x = 19,678.41 × 7,886.79
  4. Step 4: Simplify right side
    14,260.37x = 155,199,487.20
  5. Step 5: Solve for x
    x = 155,199,487.20/14,260.37
  6. Step 6: Final answer
    x = 10,883.28

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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.