Home / 10,621.22-14,657.36-6,644.59

Finding the Fourth Proportional to 10,621.22, 14,657.36 and 6,644.59

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Solution

The fourth proportional to 10,621.22, 14,657.36 and 6,644.59 is: 9,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.22 : 14,657.36 = 6,644.59 : x
  2. Step 2: Convert to fraction form
    10,621.22/14,657.36 = 6,644.59/x
  3. Step 3: Cross multiply
    10,621.22x = 14,657.36 × 6,644.59
  4. Step 4: Simplify right side
    10,621.22x = 97,392,077.82
  5. Step 5: Solve for x
    x = 97,392,077.82/10,621.22
  6. Step 6: Final answer
    x = 9,169.58

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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.