Home / 13,066.21-18,031.19-7,098.07

Finding the Fourth Proportional to 13,066.21, 18,031.19 and 7,098.07

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Solution

The fourth proportional to 13,066.21, 18,031.19 and 7,098.07 is: 9,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.21 : 18,031.19 = 7,098.07 : x
  2. Step 2: Convert to fraction form
    13,066.21/18,031.19 = 7,098.07/x
  3. Step 3: Cross multiply
    13,066.21x = 18,031.19 × 7,098.07
  4. Step 4: Simplify right side
    13,066.21x = 127,986,648.80
  5. Step 5: Solve for x
    x = 127,986,648.80/13,066.21
  6. Step 6: Final answer
    x = 9,795.24

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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.