Home / 13,538.44-20,307.66-7,303.60

Finding the Fourth Proportional to 13,538.44, 20,307.66 and 7,303.60

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Solution

The fourth proportional to 13,538.44, 20,307.66 and 7,303.60 is: 10,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.44 : 20,307.66 = 7,303.60 : x
  2. Step 2: Convert to fraction form
    13,538.44/20,307.66 = 7,303.60/x
  3. Step 3: Cross multiply
    13,538.44x = 20,307.66 × 7,303.60
  4. Step 4: Simplify right side
    13,538.44x = 148,319,025.58
  5. Step 5: Solve for x
    x = 148,319,025.58/13,538.44
  6. Step 6: Final answer
    x = 10,955.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.