Home / 11,345.17-15,656.34-6,628.54

Finding the Fourth Proportional to 11,345.17, 15,656.34 and 6,628.54

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Solution

The fourth proportional to 11,345.17, 15,656.34 and 6,628.54 is: 9,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.17 : 15,656.34 = 6,628.54 : x
  2. Step 2: Convert to fraction form
    11,345.17/15,656.34 = 6,628.54/x
  3. Step 3: Cross multiply
    11,345.17x = 15,656.34 × 6,628.54
  4. Step 4: Simplify right side
    11,345.17x = 103,778,675.94
  5. Step 5: Solve for x
    x = 103,778,675.94/11,345.17
  6. Step 6: Final answer
    x = 9,147.39

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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.