Home / 13,884.84-19,159.92-7,916.40

Finding the Fourth Proportional to 13,884.84, 19,159.92 and 7,916.40

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Solution

The fourth proportional to 13,884.84, 19,159.92 and 7,916.40 is: 10,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.84 : 19,159.92 = 7,916.40 : x
  2. Step 2: Convert to fraction form
    13,884.84/19,159.92 = 7,916.40/x
  3. Step 3: Cross multiply
    13,884.84x = 19,159.92 × 7,916.40
  4. Step 4: Simplify right side
    13,884.84x = 151,677,590.69
  5. Step 5: Solve for x
    x = 151,677,590.69/13,884.84
  6. Step 6: Final answer
    x = 10,923.97

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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.