Home / 13,818.53-20,730.76-4,459.08

Finding the Fourth Proportional to 13,818.53, 20,730.76 and 4,459.08

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Solution

The fourth proportional to 13,818.53, 20,730.76 and 4,459.08 is: 6,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.53 : 20,730.76 = 4,459.08 : x
  2. Step 2: Convert to fraction form
    13,818.53/20,730.76 = 4,459.08/x
  3. Step 3: Cross multiply
    13,818.53x = 20,730.76 × 4,459.08
  4. Step 4: Simplify right side
    13,818.53x = 92,440,106.15
  5. Step 5: Solve for x
    x = 92,440,106.15/13,818.53
  6. Step 6: Final answer
    x = 6,689.57

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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.