Home / 13,394.34-18,485.30-7,427.93

Finding the Fourth Proportional to 13,394.34, 18,485.30 and 7,427.93

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Solution

The fourth proportional to 13,394.34, 18,485.30 and 7,427.93 is: 10,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.34 : 18,485.30 = 7,427.93 : x
  2. Step 2: Convert to fraction form
    13,394.34/18,485.30 = 7,427.93/x
  3. Step 3: Cross multiply
    13,394.34x = 18,485.30 × 7,427.93
  4. Step 4: Simplify right side
    13,394.34x = 137,307,523.50
  5. Step 5: Solve for x
    x = 137,307,523.50/13,394.34
  6. Step 6: Final answer
    x = 10,251.16

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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.