Home / 11,335.40-15,643.46-6,622.44

Finding the Fourth Proportional to 11,335.40, 15,643.46 and 6,622.44

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Solution

The fourth proportional to 11,335.40, 15,643.46 and 6,622.44 is: 9,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.40 : 15,643.46 = 6,622.44 : x
  2. Step 2: Convert to fraction form
    11,335.40/15,643.46 = 6,622.44/x
  3. Step 3: Cross multiply
    11,335.40x = 15,643.46 × 6,622.44
  4. Step 4: Simplify right side
    11,335.40x = 103,597,875.24
  5. Step 5: Solve for x
    x = 103,597,875.24/11,335.40
  6. Step 6: Final answer
    x = 9,139.32

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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.