Home / 13,296.72-18,349.52-7,328.80

Finding the Fourth Proportional to 13,296.72, 18,349.52 and 7,328.80

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Solution

The fourth proportional to 13,296.72, 18,349.52 and 7,328.80 is: 10,113.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.72 : 18,349.52 = 7,328.80 : x
  2. Step 2: Convert to fraction form
    13,296.72/18,349.52 = 7,328.80/x
  3. Step 3: Cross multiply
    13,296.72x = 18,349.52 × 7,328.80
  4. Step 4: Simplify right side
    13,296.72x = 134,479,962.18
  5. Step 5: Solve for x
    x = 134,479,962.18/13,296.72
  6. Step 6: Final answer
    x = 10,113.77

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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.