Home / 10,621.68-14,657.38-5,905.04

Finding the Fourth Proportional to 10,621.68, 14,657.38 and 5,905.04

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Solution

The fourth proportional to 10,621.68, 14,657.38 and 5,905.04 is: 8,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.68 : 14,657.38 = 5,905.04 : x
  2. Step 2: Convert to fraction form
    10,621.68/14,657.38 = 5,905.04/x
  3. Step 3: Cross multiply
    10,621.68x = 14,657.38 × 5,905.04
  4. Step 4: Simplify right side
    10,621.68x = 86,552,415.20
  5. Step 5: Solve for x
    x = 86,552,415.20/10,621.68
  6. Step 6: Final answer
    x = 8,148.66

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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.