Home / 14,531.49-20,054.40-8,158.56

Finding the Fourth Proportional to 14,531.49, 20,054.40 and 8,158.56

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Solution

The fourth proportional to 14,531.49, 20,054.40 and 8,158.56 is: 11,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,531.49 : 20,054.40 = 8,158.56 : x
  2. Step 2: Convert to fraction form
    14,531.49/20,054.40 = 8,158.56/x
  3. Step 3: Cross multiply
    14,531.49x = 20,054.40 × 8,158.56
  4. Step 4: Simplify right side
    14,531.49x = 163,615,025.66
  5. Step 5: Solve for x
    x = 163,615,025.66/14,531.49
  6. Step 6: Final answer
    x = 11,259.34

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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.