Home / 11,263.35-15,543.86-7,479.99

Finding the Fourth Proportional to 11,263.35, 15,543.86 and 7,479.99

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Solution

The fourth proportional to 11,263.35, 15,543.86 and 7,479.99 is: 10,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,263.35 : 15,543.86 = 7,479.99 : x
  2. Step 2: Convert to fraction form
    11,263.35/15,543.86 = 7,479.99/x
  3. Step 3: Cross multiply
    11,263.35x = 15,543.86 × 7,479.99
  4. Step 4: Simplify right side
    11,263.35x = 116,267,917.36
  5. Step 5: Solve for x
    x = 116,267,917.36/11,263.35
  6. Step 6: Final answer
    x = 10,322.68

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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.