Home / 19,374.86-26,730.43-12,664.36

Finding the Fourth Proportional to 19,374.86, 26,730.43 and 12,664.36

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Solution

The fourth proportional to 19,374.86, 26,730.43 and 12,664.36 is: 17,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.86 : 26,730.43 = 12,664.36 : x
  2. Step 2: Convert to fraction form
    19,374.86/26,730.43 = 12,664.36/x
  3. Step 3: Cross multiply
    19,374.86x = 26,730.43 × 12,664.36
  4. Step 4: Simplify right side
    19,374.86x = 338,523,788.47
  5. Step 5: Solve for x
    x = 338,523,788.47/19,374.86
  6. Step 6: Final answer
    x = 17,472.32

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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.