Home / 14,655.28-20,222.76-8,281.49

Finding the Fourth Proportional to 14,655.28, 20,222.76 and 8,281.49

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Solution

The fourth proportional to 14,655.28, 20,222.76 and 8,281.49 is: 11,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.28 : 20,222.76 = 8,281.49 : x
  2. Step 2: Convert to fraction form
    14,655.28/20,222.76 = 8,281.49/x
  3. Step 3: Cross multiply
    14,655.28x = 20,222.76 × 8,281.49
  4. Step 4: Simplify right side
    14,655.28x = 167,474,628.41
  5. Step 5: Solve for x
    x = 167,474,628.41/14,655.28
  6. Step 6: Final answer
    x = 11,427.60

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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.