Home / 13,125.06-18,111.87-7,536.06

Finding the Fourth Proportional to 13,125.06, 18,111.87 and 7,536.06

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Solution

The fourth proportional to 13,125.06, 18,111.87 and 7,536.06 is: 10,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.06 : 18,111.87 = 7,536.06 : x
  2. Step 2: Convert to fraction form
    13,125.06/18,111.87 = 7,536.06/x
  3. Step 3: Cross multiply
    13,125.06x = 18,111.87 × 7,536.06
  4. Step 4: Simplify right side
    13,125.06x = 136,492,139.03
  5. Step 5: Solve for x
    x = 136,492,139.03/13,125.06
  6. Step 6: Final answer
    x = 10,399.35

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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.