Home / 12,582.35-18,875.80-5,182.69

Finding the Fourth Proportional to 12,582.35, 18,875.80 and 5,182.69

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Solution

The fourth proportional to 12,582.35, 18,875.80 and 5,182.69 is: 7,774.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.35 : 18,875.80 = 5,182.69 : x
  2. Step 2: Convert to fraction form
    12,582.35/18,875.80 = 5,182.69/x
  3. Step 3: Cross multiply
    12,582.35x = 18,875.80 × 5,182.69
  4. Step 4: Simplify right side
    12,582.35x = 97,827,419.90
  5. Step 5: Solve for x
    x = 97,827,419.90/12,582.35
  6. Step 6: Final answer
    x = 7,774.97

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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.