Home / 9,518.64-13,136.40-5,326.80

Finding the Fourth Proportional to 9,518.64, 13,136.40 and 5,326.80

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Solution

The fourth proportional to 9,518.64, 13,136.40 and 5,326.80 is: 7,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.64 : 13,136.40 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    9,518.64/13,136.40 = 5,326.80/x
  3. Step 3: Cross multiply
    9,518.64x = 13,136.40 × 5,326.80
  4. Step 4: Simplify right side
    9,518.64x = 69,974,975.52
  5. Step 5: Solve for x
    x = 69,974,975.52/9,518.64
  6. Step 6: Final answer
    x = 7,351.36

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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.