Home / 8,340.45-11,511.36-5,360.01

Finding the Fourth Proportional to 8,340.45, 11,511.36 and 5,360.01

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Solution

The fourth proportional to 8,340.45, 11,511.36 and 5,360.01 is: 7,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.45 : 11,511.36 = 5,360.01 : x
  2. Step 2: Convert to fraction form
    8,340.45/11,511.36 = 5,360.01/x
  3. Step 3: Cross multiply
    8,340.45x = 11,511.36 × 5,360.01
  4. Step 4: Simplify right side
    8,340.45x = 61,701,004.71
  5. Step 5: Solve for x
    x = 61,701,004.71/8,340.45
  6. Step 6: Final answer
    x = 7,397.80

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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.