Home / 18,668.24-28,002.36-12,807.08

Finding the Fourth Proportional to 18,668.24, 28,002.36 and 12,807.08

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Solution

The fourth proportional to 18,668.24, 28,002.36 and 12,807.08 is: 19,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.24 : 28,002.36 = 12,807.08 : x
  2. Step 2: Convert to fraction form
    18,668.24/28,002.36 = 12,807.08/x
  3. Step 3: Cross multiply
    18,668.24x = 28,002.36 × 12,807.08
  4. Step 4: Simplify right side
    18,668.24x = 358,628,464.71
  5. Step 5: Solve for x
    x = 358,628,464.71/18,668.24
  6. Step 6: Final answer
    x = 19,210.62

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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.