Home / 9,519.04-13,136.88-5,328.64

Finding the Fourth Proportional to 9,519.04, 13,136.88 and 5,328.64

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Solution

The fourth proportional to 9,519.04, 13,136.88 and 5,328.64 is: 7,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.04 : 13,136.88 = 5,328.64 : x
  2. Step 2: Convert to fraction form
    9,519.04/13,136.88 = 5,328.64/x
  3. Step 3: Cross multiply
    9,519.04x = 13,136.88 × 5,328.64
  4. Step 4: Simplify right side
    9,519.04x = 70,001,704.24
  5. Step 5: Solve for x
    x = 70,001,704.24/9,519.04
  6. Step 6: Final answer
    x = 7,353.86

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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.