Home / 18,719.46-28,041.48-8,868.24

Finding the Fourth Proportional to 18,719.46, 28,041.48 and 8,868.24

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Solution

The fourth proportional to 18,719.46, 28,041.48 and 8,868.24 is: 13,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.46 : 28,041.48 = 8,868.24 : x
  2. Step 2: Convert to fraction form
    18,719.46/28,041.48 = 8,868.24/x
  3. Step 3: Cross multiply
    18,719.46x = 28,041.48 × 8,868.24
  4. Step 4: Simplify right side
    18,719.46x = 248,678,574.60
  5. Step 5: Solve for x
    x = 248,678,574.60/18,719.46
  6. Step 6: Final answer
    x = 13,284.50

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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.