Home / 12,935.51-19,389.79-8,775.87

Finding the Fourth Proportional to 12,935.51, 19,389.79 and 8,775.87

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Solution

The fourth proportional to 12,935.51, 19,389.79 and 8,775.87 is: 13,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.51 : 19,389.79 = 8,775.87 : x
  2. Step 2: Convert to fraction form
    12,935.51/19,389.79 = 8,775.87/x
  3. Step 3: Cross multiply
    12,935.51x = 19,389.79 × 8,775.87
  4. Step 4: Simplify right side
    12,935.51x = 170,162,276.37
  5. Step 5: Solve for x
    x = 170,162,276.37/12,935.51
  6. Step 6: Final answer
    x = 13,154.66

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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.