Home / 18,688.08-28,029.96-4,838.16

Finding the Fourth Proportional to 18,688.08, 28,029.96 and 4,838.16

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Solution

The fourth proportional to 18,688.08, 28,029.96 and 4,838.16 is: 7,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.08 : 28,029.96 = 4,838.16 : x
  2. Step 2: Convert to fraction form
    18,688.08/28,029.96 = 4,838.16/x
  3. Step 3: Cross multiply
    18,688.08x = 28,029.96 × 4,838.16
  4. Step 4: Simplify right side
    18,688.08x = 135,613,431.27
  5. Step 5: Solve for x
    x = 135,613,431.27/18,688.08
  6. Step 6: Final answer
    x = 7,256.68

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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.