Home / 13,143.08-19,733.06-12,547.95

Finding the Fourth Proportional to 13,143.08, 19,733.06 and 12,547.95

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Solution

The fourth proportional to 13,143.08, 19,733.06 and 12,547.95 is: 18,839.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.08 : 19,733.06 = 12,547.95 : x
  2. Step 2: Convert to fraction form
    13,143.08/19,733.06 = 12,547.95/x
  3. Step 3: Cross multiply
    13,143.08x = 19,733.06 × 12,547.95
  4. Step 4: Simplify right side
    13,143.08x = 247,609,481.60
  5. Step 5: Solve for x
    x = 247,609,481.60/13,143.08
  6. Step 6: Final answer
    x = 18,839.54

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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.