Home / 19,126.42-28,678.60-7,425.97

Finding the Fourth Proportional to 19,126.42, 28,678.60 and 7,425.97

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Solution

The fourth proportional to 19,126.42, 28,678.60 and 7,425.97 is: 11,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.42 : 28,678.60 = 7,425.97 : x
  2. Step 2: Convert to fraction form
    19,126.42/28,678.60 = 7,425.97/x
  3. Step 3: Cross multiply
    19,126.42x = 28,678.60 × 7,425.97
  4. Step 4: Simplify right side
    19,126.42x = 212,966,386.11
  5. Step 5: Solve for x
    x = 212,966,386.11/19,126.42
  6. Step 6: Final answer
    x = 11,134.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.