Home / 13,216.13-18,239.07-7,627.13

Finding the Fourth Proportional to 13,216.13, 18,239.07 and 7,627.13

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Solution

The fourth proportional to 13,216.13, 18,239.07 and 7,627.13 is: 10,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.13 : 18,239.07 = 7,627.13 : x
  2. Step 2: Convert to fraction form
    13,216.13/18,239.07 = 7,627.13/x
  3. Step 3: Cross multiply
    13,216.13x = 18,239.07 × 7,627.13
  4. Step 4: Simplify right side
    13,216.13x = 139,111,666.77
  5. Step 5: Solve for x
    x = 139,111,666.77/13,216.13
  6. Step 6: Final answer
    x = 10,525.90

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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.