Home / 18,862.84-28,302.46-7,179.40

Finding the Fourth Proportional to 18,862.84, 28,302.46 and 7,179.40

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Solution

The fourth proportional to 18,862.84, 28,302.46 and 7,179.40 is: 10,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.84 : 28,302.46 = 7,179.40 : x
  2. Step 2: Convert to fraction form
    18,862.84/28,302.46 = 7,179.40/x
  3. Step 3: Cross multiply
    18,862.84x = 28,302.46 × 7,179.40
  4. Step 4: Simplify right side
    18,862.84x = 203,194,681.32
  5. Step 5: Solve for x
    x = 203,194,681.32/18,862.84
  6. Step 6: Final answer
    x = 10,772.22

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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.