Home / 13,721.55-20,574.59-4,359.84

Finding the Fourth Proportional to 13,721.55, 20,574.59 and 4,359.84

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Solution

The fourth proportional to 13,721.55, 20,574.59 and 4,359.84 is: 6,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.55 : 20,574.59 = 4,359.84 : x
  2. Step 2: Convert to fraction form
    13,721.55/20,574.59 = 4,359.84/x
  3. Step 3: Cross multiply
    13,721.55x = 20,574.59 × 4,359.84
  4. Step 4: Simplify right side
    13,721.55x = 89,701,898.67
  5. Step 5: Solve for x
    x = 89,701,898.67/13,721.55
  6. Step 6: Final answer
    x = 6,537.30

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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.