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Finding the Fourth Proportional to 11,345.80, 15,657.06 and 6,310

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Solution

The fourth proportional to 11,345.80, 15,657.06 and 6,310 is: 8,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.80 : 15,657.06 = 6,310 : x
  2. Step 2: Convert to fraction form
    11,345.80/15,657.06 = 6,310/x
  3. Step 3: Cross multiply
    11,345.80x = 15,657.06 × 6,310
  4. Step 4: Simplify right side
    11,345.80x = 98,796,048.60
  5. Step 5: Solve for x
    x = 98,796,048.60/11,345.80
  6. Step 6: Final answer
    x = 8,707.72

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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.