Home / 19,001.47-28,507.43-7,913.35

Finding the Fourth Proportional to 19,001.47, 28,507.43 and 7,913.35

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Solution

The fourth proportional to 19,001.47, 28,507.43 and 7,913.35 is: 11,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.47 : 28,507.43 = 7,913.35 : x
  2. Step 2: Convert to fraction form
    19,001.47/28,507.43 = 7,913.35/x
  3. Step 3: Cross multiply
    19,001.47x = 28,507.43 × 7,913.35
  4. Step 4: Simplify right side
    19,001.47x = 225,589,271.19
  5. Step 5: Solve for x
    x = 225,589,271.19/19,001.47
  6. Step 6: Final answer
    x = 11,872.20

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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.