Home / 18,962.77-28,444.07-4,921.62

Finding the Fourth Proportional to 18,962.77, 28,444.07 and 4,921.62

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Solution

The fourth proportional to 18,962.77, 28,444.07 and 4,921.62 is: 7,382.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.77 : 28,444.07 = 4,921.62 : x
  2. Step 2: Convert to fraction form
    18,962.77/28,444.07 = 4,921.62/x
  3. Step 3: Cross multiply
    18,962.77x = 28,444.07 × 4,921.62
  4. Step 4: Simplify right side
    18,962.77x = 139,990,916.10
  5. Step 5: Solve for x
    x = 139,990,916.10/18,962.77
  6. Step 6: Final answer
    x = 7,382.41

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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.