Home / 19,137.61-28,695.38-7,437.16

Finding the Fourth Proportional to 19,137.61, 28,695.38 and 7,437.16

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Solution

The fourth proportional to 19,137.61, 28,695.38 and 7,437.16 is: 11,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.61 : 28,695.38 = 7,437.16 : x
  2. Step 2: Convert to fraction form
    19,137.61/28,695.38 = 7,437.16/x
  3. Step 3: Cross multiply
    19,137.61x = 28,695.38 × 7,437.16
  4. Step 4: Simplify right side
    19,137.61x = 213,412,023.40
  5. Step 5: Solve for x
    x = 213,412,023.40/19,137.61
  6. Step 6: Final answer
    x = 11,151.45

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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.