Home / 19,520.48-26,926.08-12,806.48

Finding the Fourth Proportional to 19,520.48, 26,926.08 and 12,806.48

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Solution

The fourth proportional to 19,520.48, 26,926.08 and 12,806.48 is: 17,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.48 : 26,926.08 = 12,806.48 : x
  2. Step 2: Convert to fraction form
    19,520.48/26,926.08 = 12,806.48/x
  3. Step 3: Cross multiply
    19,520.48x = 26,926.08 × 12,806.48
  4. Step 4: Simplify right side
    19,520.48x = 344,828,305.00
  5. Step 5: Solve for x
    x = 344,828,305.00/19,520.48
  6. Step 6: Final answer
    x = 17,664.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.