Home / 14,167.84-19,551.36-7,880.16

Finding the Fourth Proportional to 14,167.84, 19,551.36 and 7,880.16

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Solution

The fourth proportional to 14,167.84, 19,551.36 and 7,880.16 is: 10,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,167.84 : 19,551.36 = 7,880.16 : x
  2. Step 2: Convert to fraction form
    14,167.84/19,551.36 = 7,880.16/x
  3. Step 3: Cross multiply
    14,167.84x = 19,551.36 × 7,880.16
  4. Step 4: Simplify right side
    14,167.84x = 154,067,845.02
  5. Step 5: Solve for x
    x = 154,067,845.02/14,167.84
  6. Step 6: Final answer
    x = 10,874.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.