Home / 11,345.24-15,656.55-6,309.20

Finding the Fourth Proportional to 11,345.24, 15,656.55 and 6,309.20

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Solution

The fourth proportional to 11,345.24, 15,656.55 and 6,309.20 is: 8,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.24 : 15,656.55 = 6,309.20 : x
  2. Step 2: Convert to fraction form
    11,345.24/15,656.55 = 6,309.20/x
  3. Step 3: Cross multiply
    11,345.24x = 15,656.55 × 6,309.20
  4. Step 4: Simplify right side
    11,345.24x = 98,780,305.26
  5. Step 5: Solve for x
    x = 98,780,305.26/11,345.24
  6. Step 6: Final answer
    x = 8,706.76

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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.