Home / 8,875.45-13,315.74-2,871.39

Finding the Fourth Proportional to 8,875.45, 13,315.74 and 2,871.39

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Solution

The fourth proportional to 8,875.45, 13,315.74 and 2,871.39 is: 4,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.45 : 13,315.74 = 2,871.39 : x
  2. Step 2: Convert to fraction form
    8,875.45/13,315.74 = 2,871.39/x
  3. Step 3: Cross multiply
    8,875.45x = 13,315.74 × 2,871.39
  4. Step 4: Simplify right side
    8,875.45x = 38,234,721.84
  5. Step 5: Solve for x
    x = 38,234,721.84/8,875.45
  6. Step 6: Final answer
    x = 4,307.92

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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.