Home / 18,809.60-28,214.34-5,661.96

Finding the Fourth Proportional to 18,809.60, 28,214.34 and 5,661.96

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Solution

The fourth proportional to 18,809.60, 28,214.34 and 5,661.96 is: 8,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.60 : 28,214.34 = 5,661.96 : x
  2. Step 2: Convert to fraction form
    18,809.60/28,214.34 = 5,661.96/x
  3. Step 3: Cross multiply
    18,809.60x = 28,214.34 × 5,661.96
  4. Step 4: Simplify right side
    18,809.60x = 159,748,464.51
  5. Step 5: Solve for x
    x = 159,748,464.51/18,809.60
  6. Step 6: Final answer
    x = 8,492.92

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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.