Home / 18,983.52-28,475.28-5,656.72

Finding the Fourth Proportional to 18,983.52, 28,475.28 and 5,656.72

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Solution

The fourth proportional to 18,983.52, 28,475.28 and 5,656.72 is: 8,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.52 : 28,475.28 = 5,656.72 : x
  2. Step 2: Convert to fraction form
    18,983.52/28,475.28 = 5,656.72/x
  3. Step 3: Cross multiply
    18,983.52x = 28,475.28 × 5,656.72
  4. Step 4: Simplify right side
    18,983.52x = 161,076,614.69
  5. Step 5: Solve for x
    x = 161,076,614.69/18,983.52
  6. Step 6: Final answer
    x = 8,485.08

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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.