Home / 17,115.84-25,657.29-5,421.06

Finding the Fourth Proportional to 17,115.84, 25,657.29 and 5,421.06

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Solution

The fourth proportional to 17,115.84, 25,657.29 and 5,421.06 is: 8,126.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.84 : 25,657.29 = 5,421.06 : x
  2. Step 2: Convert to fraction form
    17,115.84/25,657.29 = 5,421.06/x
  3. Step 3: Cross multiply
    17,115.84x = 25,657.29 × 5,421.06
  4. Step 4: Simplify right side
    17,115.84x = 139,089,708.53
  5. Step 5: Solve for x
    x = 139,089,708.53/17,115.84
  6. Step 6: Final answer
    x = 8,126.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.