Home / 13,538.52-18,683.28-7,570.54

Finding the Fourth Proportional to 13,538.52, 18,683.28 and 7,570.54

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Solution

The fourth proportional to 13,538.52, 18,683.28 and 7,570.54 is: 10,447.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.52 : 18,683.28 = 7,570.54 : x
  2. Step 2: Convert to fraction form
    13,538.52/18,683.28 = 7,570.54/x
  3. Step 3: Cross multiply
    13,538.52x = 18,683.28 × 7,570.54
  4. Step 4: Simplify right side
    13,538.52x = 141,442,518.57
  5. Step 5: Solve for x
    x = 141,442,518.57/13,538.52
  6. Step 6: Final answer
    x = 10,447.41

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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.