Home / 14,177.31-19,564.70-7,889.55

Finding the Fourth Proportional to 14,177.31, 19,564.70 and 7,889.55

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Solution

The fourth proportional to 14,177.31, 19,564.70 and 7,889.55 is: 10,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.31 : 19,564.70 = 7,889.55 : x
  2. Step 2: Convert to fraction form
    14,177.31/19,564.70 = 7,889.55/x
  3. Step 3: Cross multiply
    14,177.31x = 19,564.70 × 7,889.55
  4. Step 4: Simplify right side
    14,177.31x = 154,356,678.89
  5. Step 5: Solve for x
    x = 154,356,678.89/14,177.31
  6. Step 6: Final answer
    x = 10,887.59

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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.