Home / 19,553.64-26,976.95-12,842.90

Finding the Fourth Proportional to 19,553.64, 26,976.95 and 12,842.90

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Solution

The fourth proportional to 19,553.64, 26,976.95 and 12,842.90 is: 17,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.64 : 26,976.95 = 12,842.90 : x
  2. Step 2: Convert to fraction form
    19,553.64/26,976.95 = 12,842.90/x
  3. Step 3: Cross multiply
    19,553.64x = 26,976.95 × 12,842.90
  4. Step 4: Simplify right side
    19,553.64x = 346,462,206.94
  5. Step 5: Solve for x
    x = 346,462,206.94/19,553.64
  6. Step 6: Final answer
    x = 17,718.56

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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.