Home / 13,125.03-18,111.86-7,459.02

Finding the Fourth Proportional to 13,125.03, 18,111.86 and 7,459.02

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Solution

The fourth proportional to 13,125.03, 18,111.86 and 7,459.02 is: 10,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.03 : 18,111.86 = 7,459.02 : x
  2. Step 2: Convert to fraction form
    13,125.03/18,111.86 = 7,459.02/x
  3. Step 3: Cross multiply
    13,125.03x = 18,111.86 × 7,459.02
  4. Step 4: Simplify right side
    13,125.03x = 135,096,688.68
  5. Step 5: Solve for x
    x = 135,096,688.68/13,125.03
  6. Step 6: Final answer
    x = 10,293.06

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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.