Home / 18,151.70-25,031.89-11,775.93

Finding the Fourth Proportional to 18,151.70, 25,031.89 and 11,775.93

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Solution

The fourth proportional to 18,151.70, 25,031.89 and 11,775.93 is: 16,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.70 : 25,031.89 = 11,775.93 : x
  2. Step 2: Convert to fraction form
    18,151.70/25,031.89 = 11,775.93/x
  3. Step 3: Cross multiply
    18,151.70x = 25,031.89 × 11,775.93
  4. Step 4: Simplify right side
    18,151.70x = 294,773,779.82
  5. Step 5: Solve for x
    x = 294,773,779.82/18,151.70
  6. Step 6: Final answer
    x = 16,239.46

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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.