Home / 11,133.16-15,367.14-6,420.52

Finding the Fourth Proportional to 11,133.16, 15,367.14 and 6,420.52

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Solution

The fourth proportional to 11,133.16, 15,367.14 and 6,420.52 is: 8,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.16 : 15,367.14 = 6,420.52 : x
  2. Step 2: Convert to fraction form
    11,133.16/15,367.14 = 6,420.52/x
  3. Step 3: Cross multiply
    11,133.16x = 15,367.14 × 6,420.52
  4. Step 4: Simplify right side
    11,133.16x = 98,665,029.71
  5. Step 5: Solve for x
    x = 98,665,029.71/11,133.16
  6. Step 6: Final answer
    x = 8,862.27

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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.