Home / 11,345.54-15,657.12-6,309.98

Finding the Fourth Proportional to 11,345.54, 15,657.12 and 6,309.98

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Solution

The fourth proportional to 11,345.54, 15,657.12 and 6,309.98 is: 8,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.54 : 15,657.12 = 6,309.98 : x
  2. Step 2: Convert to fraction form
    11,345.54/15,657.12 = 6,309.98/x
  3. Step 3: Cross multiply
    11,345.54x = 15,657.12 × 6,309.98
  4. Step 4: Simplify right side
    11,345.54x = 98,796,035.77
  5. Step 5: Solve for x
    x = 98,796,035.77/11,345.54
  6. Step 6: Final answer
    x = 8,707.92

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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.