Home / 11,340.48-15,649.12-6,371.52

Finding the Fourth Proportional to 11,340.48, 15,649.12 and 6,371.52

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Solution

The fourth proportional to 11,340.48, 15,649.12 and 6,371.52 is: 8,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.48 : 15,649.12 = 6,371.52 : x
  2. Step 2: Convert to fraction form
    11,340.48/15,649.12 = 6,371.52/x
  3. Step 3: Cross multiply
    11,340.48x = 15,649.12 × 6,371.52
  4. Step 4: Simplify right side
    11,340.48x = 99,708,681.06
  5. Step 5: Solve for x
    x = 99,708,681.06/11,340.48
  6. Step 6: Final answer
    x = 8,792.28

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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.