Home / 19,207.05-28,787.95-8,664.81

Finding the Fourth Proportional to 19,207.05, 28,787.95 and 8,664.81

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Solution

The fourth proportional to 19,207.05, 28,787.95 and 8,664.81 is: 12,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.05 : 28,787.95 = 8,664.81 : x
  2. Step 2: Convert to fraction form
    19,207.05/28,787.95 = 8,664.81/x
  3. Step 3: Cross multiply
    19,207.05x = 28,787.95 × 8,664.81
  4. Step 4: Simplify right side
    19,207.05x = 249,442,117.04
  5. Step 5: Solve for x
    x = 249,442,117.04/19,207.05
  6. Step 6: Final answer
    x = 12,987.01

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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.