Home / 8,364.48-11,538.90-7,037.70

Finding the Fourth Proportional to 8,364.48, 11,538.90 and 7,037.70

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Solution

The fourth proportional to 8,364.48, 11,538.90 and 7,037.70 is: 9,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.48 : 11,538.90 = 7,037.70 : x
  2. Step 2: Convert to fraction form
    8,364.48/11,538.90 = 7,037.70/x
  3. Step 3: Cross multiply
    8,364.48x = 11,538.90 × 7,037.70
  4. Step 4: Simplify right side
    8,364.48x = 81,207,316.53
  5. Step 5: Solve for x
    x = 81,207,316.53/8,364.48
  6. Step 6: Final answer
    x = 9,708.59

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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.