Home / 11,345.32-15,657.57-6,309.46

Finding the Fourth Proportional to 11,345.32, 15,657.57 and 6,309.46

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Solution

The fourth proportional to 11,345.32, 15,657.57 and 6,309.46 is: 8,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.32 : 15,657.57 = 6,309.46 : x
  2. Step 2: Convert to fraction form
    11,345.32/15,657.57 = 6,309.46/x
  3. Step 3: Cross multiply
    11,345.32x = 15,657.57 × 6,309.46
  4. Step 4: Simplify right side
    11,345.32x = 98,790,811.61
  5. Step 5: Solve for x
    x = 98,790,811.61/11,345.32
  6. Step 6: Final answer
    x = 8,707.63

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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.