Home / 13,281.24-18,328.12-7,313.34

Finding the Fourth Proportional to 13,281.24, 18,328.12 and 7,313.34

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Solution

The fourth proportional to 13,281.24, 18,328.12 and 7,313.34 is: 10,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.24 : 18,328.12 = 7,313.34 : x
  2. Step 2: Convert to fraction form
    13,281.24/18,328.12 = 7,313.34/x
  3. Step 3: Cross multiply
    13,281.24x = 18,328.12 × 7,313.34
  4. Step 4: Simplify right side
    13,281.24x = 134,039,773.12
  5. Step 5: Solve for x
    x = 134,039,773.12/13,281.24
  6. Step 6: Final answer
    x = 10,092.41

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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.