Home / 11,345.13-15,656.28-6,629.44

Finding the Fourth Proportional to 11,345.13, 15,656.28 and 6,629.44

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Solution

The fourth proportional to 11,345.13, 15,656.28 and 6,629.44 is: 9,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.13 : 15,656.28 = 6,629.44 : x
  2. Step 2: Convert to fraction form
    11,345.13/15,656.28 = 6,629.44/x
  3. Step 3: Cross multiply
    11,345.13x = 15,656.28 × 6,629.44
  4. Step 4: Simplify right side
    11,345.13x = 103,792,368.88
  5. Step 5: Solve for x
    x = 103,792,368.88/11,345.13
  6. Step 6: Final answer
    x = 9,148.63

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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.