Home / 15,989.72-23,987.13-5,316.46

Finding the Fourth Proportional to 15,989.72, 23,987.13 and 5,316.46

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Solution

The fourth proportional to 15,989.72, 23,987.13 and 5,316.46 is: 7,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.72 : 23,987.13 = 5,316.46 : x
  2. Step 2: Convert to fraction form
    15,989.72/23,987.13 = 5,316.46/x
  3. Step 3: Cross multiply
    15,989.72x = 23,987.13 × 5,316.46
  4. Step 4: Simplify right side
    15,989.72x = 127,526,619.67
  5. Step 5: Solve for x
    x = 127,526,619.67/15,989.72
  6. Step 6: Final answer
    x = 7,975.54

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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.