Home / 15,989.61-23,987.38-5,459.06

Finding the Fourth Proportional to 15,989.61, 23,987.38 and 5,459.06

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Solution

The fourth proportional to 15,989.61, 23,987.38 and 5,459.06 is: 8,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.61 : 23,987.38 = 5,459.06 : x
  2. Step 2: Convert to fraction form
    15,989.61/23,987.38 = 5,459.06/x
  3. Step 3: Cross multiply
    15,989.61x = 23,987.38 × 5,459.06
  4. Step 4: Simplify right side
    15,989.61x = 130,948,413.08
  5. Step 5: Solve for x
    x = 130,948,413.08/15,989.61
  6. Step 6: Final answer
    x = 8,189.59

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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.