Home / 15,019.06-20,728.88-8,735.08

Finding the Fourth Proportional to 15,019.06, 20,728.88 and 8,735.08

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Solution

The fourth proportional to 15,019.06, 20,728.88 and 8,735.08 is: 12,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.06 : 20,728.88 = 8,735.08 : x
  2. Step 2: Convert to fraction form
    15,019.06/20,728.88 = 8,735.08/x
  3. Step 3: Cross multiply
    15,019.06x = 20,728.88 × 8,735.08
  4. Step 4: Simplify right side
    15,019.06x = 181,068,381.44
  5. Step 5: Solve for x
    x = 181,068,381.44/15,019.06
  6. Step 6: Final answer
    x = 12,055.91

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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.