Home / 19,470.21-26,869.41-11,916.39

Finding the Fourth Proportional to 19,470.21, 26,869.41 and 11,916.39

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Solution

The fourth proportional to 19,470.21, 26,869.41 and 11,916.39 is: 16,444.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.21 : 26,869.41 = 11,916.39 : x
  2. Step 2: Convert to fraction form
    19,470.21/26,869.41 = 11,916.39/x
  3. Step 3: Cross multiply
    19,470.21x = 26,869.41 × 11,916.39
  4. Step 4: Simplify right side
    19,470.21x = 320,186,368.63
  5. Step 5: Solve for x
    x = 320,186,368.63/19,470.21
  6. Step 6: Final answer
    x = 16,444.94

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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.