Home / 13,490.85-18,617.58-7,522.32

Finding the Fourth Proportional to 13,490.85, 18,617.58 and 7,522.32

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Solution

The fourth proportional to 13,490.85, 18,617.58 and 7,522.32 is: 10,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.85 : 18,617.58 = 7,522.32 : x
  2. Step 2: Convert to fraction form
    13,490.85/18,617.58 = 7,522.32/x
  3. Step 3: Cross multiply
    13,490.85x = 18,617.58 × 7,522.32
  4. Step 4: Simplify right side
    13,490.85x = 140,047,394.39
  5. Step 5: Solve for x
    x = 140,047,394.39/13,490.85
  6. Step 6: Final answer
    x = 10,380.92

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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.