Home / 18,803.36-28,210.58-5,657.74

Finding the Fourth Proportional to 18,803.36, 28,210.58 and 5,657.74

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Solution

The fourth proportional to 18,803.36, 28,210.58 and 5,657.74 is: 8,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.36 : 28,210.58 = 5,657.74 : x
  2. Step 2: Convert to fraction form
    18,803.36/28,210.58 = 5,657.74/x
  3. Step 3: Cross multiply
    18,803.36x = 28,210.58 × 5,657.74
  4. Step 4: Simplify right side
    18,803.36x = 159,608,126.89
  5. Step 5: Solve for x
    x = 159,608,126.89/18,803.36
  6. Step 6: Final answer
    x = 8,488.28

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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.