Home / 10,621.36-14,657.80-5,905.68

Finding the Fourth Proportional to 10,621.36, 14,657.80 and 5,905.68

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Solution

The fourth proportional to 10,621.36, 14,657.80 and 5,905.68 is: 8,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.36 : 14,657.80 = 5,905.68 : x
  2. Step 2: Convert to fraction form
    10,621.36/14,657.80 = 5,905.68/x
  3. Step 3: Cross multiply
    10,621.36x = 14,657.80 × 5,905.68
  4. Step 4: Simplify right side
    10,621.36x = 86,564,276.30
  5. Step 5: Solve for x
    x = 86,564,276.30/10,621.36
  6. Step 6: Final answer
    x = 8,150.02

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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.