Home / 12,867.51-19,301.22-8,453.04

Finding the Fourth Proportional to 12,867.51, 19,301.22 and 8,453.04

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Solution

The fourth proportional to 12,867.51, 19,301.22 and 8,453.04 is: 12,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.51 : 19,301.22 = 8,453.04 : x
  2. Step 2: Convert to fraction form
    12,867.51/19,301.22 = 8,453.04/x
  3. Step 3: Cross multiply
    12,867.51x = 19,301.22 × 8,453.04
  4. Step 4: Simplify right side
    12,867.51x = 163,153,984.71
  5. Step 5: Solve for x
    x = 163,153,984.71/12,867.51
  6. Step 6: Final answer
    x = 12,679.53

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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.