Home / 11,345.48-15,657.18-6,310.28

Finding the Fourth Proportional to 11,345.48, 15,657.18 and 6,310.28

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Solution

The fourth proportional to 11,345.48, 15,657.18 and 6,310.28 is: 8,708.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.48 : 15,657.18 = 6,310.28 : x
  2. Step 2: Convert to fraction form
    11,345.48/15,657.18 = 6,310.28/x
  3. Step 3: Cross multiply
    11,345.48x = 15,657.18 × 6,310.28
  4. Step 4: Simplify right side
    11,345.48x = 98,801,189.81
  5. Step 5: Solve for x
    x = 98,801,189.81/11,345.48
  6. Step 6: Final answer
    x = 8,708.42

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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.