Home / 11,398.48-15,730.44-6,429.52

Finding the Fourth Proportional to 11,398.48, 15,730.44 and 6,429.52

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Solution

The fourth proportional to 11,398.48, 15,730.44 and 6,429.52 is: 8,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.48 : 15,730.44 = 6,429.52 : x
  2. Step 2: Convert to fraction form
    11,398.48/15,730.44 = 6,429.52/x
  3. Step 3: Cross multiply
    11,398.48x = 15,730.44 × 6,429.52
  4. Step 4: Simplify right side
    11,398.48x = 101,139,178.59
  5. Step 5: Solve for x
    x = 101,139,178.59/11,398.48
  6. Step 6: Final answer
    x = 8,873.04

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1.5x scale

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.