Home / 13,319.84-18,381.44-7,270.00

Finding the Fourth Proportional to 13,319.84, 18,381.44 and 7,270.00

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Solution

The fourth proportional to 13,319.84, 18,381.44 and 7,270.00 is: 10,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.84 : 18,381.44 = 7,270.00 : x
  2. Step 2: Convert to fraction form
    13,319.84/18,381.44 = 7,270.00/x
  3. Step 3: Cross multiply
    13,319.84x = 18,381.44 × 7,270.00
  4. Step 4: Simplify right side
    13,319.84x = 133,632,986.50
  5. Step 5: Solve for x
    x = 133,632,986.50/13,319.84
  6. Step 6: Final answer
    x = 10,032.63

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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.