Home / 9,578.02-13,217.16-5,386

Finding the Fourth Proportional to 9,578.02, 13,217.16 and 5,386

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Solution

The fourth proportional to 9,578.02, 13,217.16 and 5,386 is: 7,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.02 : 13,217.16 = 5,386 : x
  2. Step 2: Convert to fraction form
    9,578.02/13,217.16 = 5,386/x
  3. Step 3: Cross multiply
    9,578.02x = 13,217.16 × 5,386
  4. Step 4: Simplify right side
    9,578.02x = 71,187,623.76
  5. Step 5: Solve for x
    x = 71,187,623.76/9,578.02
  6. Step 6: Final answer
    x = 7,432.39

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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.