Home / 19,490.40-26,897.04-11,106.72

Finding the Fourth Proportional to 19,490.40, 26,897.04 and 11,106.72

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Solution

The fourth proportional to 19,490.40, 26,897.04 and 11,106.72 is: 15,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.40 : 26,897.04 = 11,106.72 : x
  2. Step 2: Convert to fraction form
    19,490.40/26,897.04 = 11,106.72/x
  3. Step 3: Cross multiply
    19,490.40x = 26,897.04 × 11,106.72
  4. Step 4: Simplify right side
    19,490.40x = 298,737,892.11
  5. Step 5: Solve for x
    x = 298,737,892.11/19,490.40
  6. Step 6: Final answer
    x = 15,327.44

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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.