Home / 13,855.32-19,106.69-8,549.01

Finding the Fourth Proportional to 13,855.32, 19,106.69 and 8,549.01

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Solution

The fourth proportional to 13,855.32, 19,106.69 and 8,549.01 is: 11,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.32 : 19,106.69 = 8,549.01 : x
  2. Step 2: Convert to fraction form
    13,855.32/19,106.69 = 8,549.01/x
  3. Step 3: Cross multiply
    13,855.32x = 19,106.69 × 8,549.01
  4. Step 4: Simplify right side
    13,855.32x = 163,343,241.13
  5. Step 5: Solve for x
    x = 163,343,241.13/13,855.32
  6. Step 6: Final answer
    x = 11,789.21

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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.