Home / 18,743.04-28,111.32-7,054.20

Finding the Fourth Proportional to 18,743.04, 28,111.32 and 7,054.20

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Solution

The fourth proportional to 18,743.04, 28,111.32 and 7,054.20 is: 10,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.04 : 28,111.32 = 7,054.20 : x
  2. Step 2: Convert to fraction form
    18,743.04/28,111.32 = 7,054.20/x
  3. Step 3: Cross multiply
    18,743.04x = 28,111.32 × 7,054.20
  4. Step 4: Simplify right side
    18,743.04x = 198,302,873.54
  5. Step 5: Solve for x
    x = 198,302,873.54/18,743.04
  6. Step 6: Final answer
    x = 10,580.08

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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.