Home / 19,154.51-28,726.90-9,789.29

Finding the Fourth Proportional to 19,154.51, 28,726.90 and 9,789.29

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Solution

The fourth proportional to 19,154.51, 28,726.90 and 9,789.29 is: 14,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.51 : 28,726.90 = 9,789.29 : x
  2. Step 2: Convert to fraction form
    19,154.51/28,726.90 = 9,789.29/x
  3. Step 3: Cross multiply
    19,154.51x = 28,726.90 × 9,789.29
  4. Step 4: Simplify right side
    19,154.51x = 281,215,949.58
  5. Step 5: Solve for x
    x = 281,215,949.58/19,154.51
  6. Step 6: Final answer
    x = 14,681.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.