Home / 14,639.95-21,957.43-5,278.11

Finding the Fourth Proportional to 14,639.95, 21,957.43 and 5,278.11

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Solution

The fourth proportional to 14,639.95, 21,957.43 and 5,278.11 is: 7,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.95 : 21,957.43 = 5,278.11 : x
  2. Step 2: Convert to fraction form
    14,639.95/21,957.43 = 5,278.11/x
  3. Step 3: Cross multiply
    14,639.95x = 21,957.43 × 5,278.11
  4. Step 4: Simplify right side
    14,639.95x = 115,893,730.86
  5. Step 5: Solve for x
    x = 115,893,730.86/14,639.95
  6. Step 6: Final answer
    x = 7,916.27

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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.