Home / 13,035.24-17,987.10-7,729.08

Finding the Fourth Proportional to 13,035.24, 17,987.10 and 7,729.08

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Solution

The fourth proportional to 13,035.24, 17,987.10 and 7,729.08 is: 10,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.24 : 17,987.10 = 7,729.08 : x
  2. Step 2: Convert to fraction form
    13,035.24/17,987.10 = 7,729.08/x
  3. Step 3: Cross multiply
    13,035.24x = 17,987.10 × 7,729.08
  4. Step 4: Simplify right side
    13,035.24x = 139,023,734.87
  5. Step 5: Solve for x
    x = 139,023,734.87/13,035.24
  6. Step 6: Final answer
    x = 10,665.22

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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.