Home / 15,662.02-21,612.18-8,947.63

Finding the Fourth Proportional to 15,662.02, 21,612.18 and 8,947.63

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Solution

The fourth proportional to 15,662.02, 21,612.18 and 8,947.63 is: 12,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662.02 : 21,612.18 = 8,947.63 : x
  2. Step 2: Convert to fraction form
    15,662.02/21,612.18 = 8,947.63/x
  3. Step 3: Cross multiply
    15,662.02x = 21,612.18 × 8,947.63
  4. Step 4: Simplify right side
    15,662.02x = 193,377,790.13
  5. Step 5: Solve for x
    x = 193,377,790.13/15,662.02
  6. Step 6: Final answer
    x = 12,346.93

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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.