Home / 18,685.64-28,023.69-5,534.94

Finding the Fourth Proportional to 18,685.64, 28,023.69 and 5,534.94

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Solution

The fourth proportional to 18,685.64, 28,023.69 and 5,534.94 is: 8,300.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.64 : 28,023.69 = 5,534.94 : x
  2. Step 2: Convert to fraction form
    18,685.64/28,023.69 = 5,534.94/x
  3. Step 3: Cross multiply
    18,685.64x = 28,023.69 × 5,534.94
  4. Step 4: Simplify right side
    18,685.64x = 155,109,274.94
  5. Step 5: Solve for x
    x = 155,109,274.94/18,685.64
  6. Step 6: Final answer
    x = 8,300.99

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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.