Home / 18,803.12-28,202.44-4,953.20

Finding the Fourth Proportional to 18,803.12, 28,202.44 and 4,953.20

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Solution

The fourth proportional to 18,803.12, 28,202.44 and 4,953.20 is: 7,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.12 : 28,202.44 = 4,953.20 : x
  2. Step 2: Convert to fraction form
    18,803.12/28,202.44 = 4,953.20/x
  3. Step 3: Cross multiply
    18,803.12x = 28,202.44 × 4,953.20
  4. Step 4: Simplify right side
    18,803.12x = 139,692,325.81
  5. Step 5: Solve for x
    x = 139,692,325.81/18,803.12
  6. Step 6: Final answer
    x = 7,429.21

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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.