Home / 9,141.48-12,614.64-5,163

Finding the Fourth Proportional to 9,141.48, 12,614.64 and 5,163

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Solution

The fourth proportional to 9,141.48, 12,614.64 and 5,163 is: 7,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.48 : 12,614.64 = 5,163 : x
  2. Step 2: Convert to fraction form
    9,141.48/12,614.64 = 5,163/x
  3. Step 3: Cross multiply
    9,141.48x = 12,614.64 × 5,163
  4. Step 4: Simplify right side
    9,141.48x = 65,129,386.32
  5. Step 5: Solve for x
    x = 65,129,386.32/9,141.48
  6. Step 6: Final answer
    x = 7,124.60

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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.