Home / 14,943.56-20,621.40-8,657.96

Finding the Fourth Proportional to 14,943.56, 20,621.40 and 8,657.96

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Solution

The fourth proportional to 14,943.56, 20,621.40 and 8,657.96 is: 11,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.56 : 20,621.40 = 8,657.96 : x
  2. Step 2: Convert to fraction form
    14,943.56/20,621.40 = 8,657.96/x
  3. Step 3: Cross multiply
    14,943.56x = 20,621.40 × 8,657.96
  4. Step 4: Simplify right side
    14,943.56x = 178,539,256.34
  5. Step 5: Solve for x
    x = 178,539,256.34/14,943.56
  6. Step 6: Final answer
    x = 11,947.57

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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.