Home / 13,326.48-18,388.02-7,357.98

Finding the Fourth Proportional to 13,326.48, 18,388.02 and 7,357.98

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Solution

The fourth proportional to 13,326.48, 18,388.02 and 7,357.98 is: 10,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.48 : 18,388.02 = 7,357.98 : x
  2. Step 2: Convert to fraction form
    13,326.48/18,388.02 = 7,357.98/x
  3. Step 3: Cross multiply
    13,326.48x = 18,388.02 × 7,357.98
  4. Step 4: Simplify right side
    13,326.48x = 135,298,683.40
  5. Step 5: Solve for x
    x = 135,298,683.40/13,326.48
  6. Step 6: Final answer
    x = 10,152.62

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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.