Home / 13,818.98-20,730.28-4,459.34

Finding the Fourth Proportional to 13,818.98, 20,730.28 and 4,459.34

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Solution

The fourth proportional to 13,818.98, 20,730.28 and 4,459.34 is: 6,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.98 : 20,730.28 = 4,459.34 : x
  2. Step 2: Convert to fraction form
    13,818.98/20,730.28 = 4,459.34/x
  3. Step 3: Cross multiply
    13,818.98x = 20,730.28 × 4,459.34
  4. Step 4: Simplify right side
    13,818.98x = 92,443,366.82
  5. Step 5: Solve for x
    x = 92,443,366.82/13,818.98
  6. Step 6: Final answer
    x = 6,689.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.