Home / 9,549.90-13,178.70-5,571.18

Finding the Fourth Proportional to 9,549.90, 13,178.70 and 5,571.18

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Solution

The fourth proportional to 9,549.90, 13,178.70 and 5,571.18 is: 7,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,549.90 : 13,178.70 = 5,571.18 : x
  2. Step 2: Convert to fraction form
    9,549.90/13,178.70 = 5,571.18/x
  3. Step 3: Cross multiply
    9,549.90x = 13,178.70 × 5,571.18
  4. Step 4: Simplify right side
    9,549.90x = 73,420,909.87
  5. Step 5: Solve for x
    x = 73,420,909.87/9,549.90
  6. Step 6: Final answer
    x = 7,688.13

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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.