Home / 8,655.36-12,983.40-3,721.62

Finding the Fourth Proportional to 8,655.36, 12,983.40 and 3,721.62

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Solution

The fourth proportional to 8,655.36, 12,983.40 and 3,721.62 is: 5,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.36 : 12,983.40 = 3,721.62 : x
  2. Step 2: Convert to fraction form
    8,655.36/12,983.40 = 3,721.62/x
  3. Step 3: Cross multiply
    8,655.36x = 12,983.40 × 3,721.62
  4. Step 4: Simplify right side
    8,655.36x = 48,319,281.11
  5. Step 5: Solve for x
    x = 48,319,281.11/8,655.36
  6. Step 6: Final answer
    x = 5,582.58

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1.5x scale

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.