Home / 13,549.16-18,690.81-9,563.96

Finding the Fourth Proportional to 13,549.16, 18,690.81 and 9,563.96

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Solution

The fourth proportional to 13,549.16, 18,690.81 and 9,563.96 is: 13,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.16 : 18,690.81 = 9,563.96 : x
  2. Step 2: Convert to fraction form
    13,549.16/18,690.81 = 9,563.96/x
  3. Step 3: Cross multiply
    13,549.16x = 18,690.81 × 9,563.96
  4. Step 4: Simplify right side
    13,549.16x = 178,758,159.21
  5. Step 5: Solve for x
    x = 178,758,159.21/13,549.16
  6. Step 6: Final answer
    x = 13,193.30

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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.