Home / 7,618.51-11,421.98-5,272.28

Finding the Fourth Proportional to 7,618.51, 11,421.98 and 5,272.28

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Solution

The fourth proportional to 7,618.51, 11,421.98 and 5,272.28 is: 7,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.51 : 11,421.98 = 5,272.28 : x
  2. Step 2: Convert to fraction form
    7,618.51/11,421.98 = 5,272.28/x
  3. Step 3: Cross multiply
    7,618.51x = 11,421.98 × 5,272.28
  4. Step 4: Simplify right side
    7,618.51x = 60,219,876.71
  5. Step 5: Solve for x
    x = 60,219,876.71/7,618.51
  6. Step 6: Final answer
    x = 7,904.42

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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.