Home / 13,186.36-19,777.74-4,421.08

Finding the Fourth Proportional to 13,186.36, 19,777.74 and 4,421.08

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Solution

The fourth proportional to 13,186.36, 19,777.74 and 4,421.08 is: 6,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.36 : 19,777.74 = 4,421.08 : x
  2. Step 2: Convert to fraction form
    13,186.36/19,777.74 = 4,421.08/x
  3. Step 3: Cross multiply
    13,186.36x = 19,777.74 × 4,421.08
  4. Step 4: Simplify right side
    13,186.36x = 87,438,970.76
  5. Step 5: Solve for x
    x = 87,438,970.76/13,186.36
  6. Step 6: Final answer
    x = 6,631.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.