Home / 12,937.49-19,400.09-5,915.42

Finding the Fourth Proportional to 12,937.49, 19,400.09 and 5,915.42

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Solution

The fourth proportional to 12,937.49, 19,400.09 and 5,915.42 is: 8,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.49 : 19,400.09 = 5,915.42 : x
  2. Step 2: Convert to fraction form
    12,937.49/19,400.09 = 5,915.42/x
  3. Step 3: Cross multiply
    12,937.49x = 19,400.09 × 5,915.42
  4. Step 4: Simplify right side
    12,937.49x = 114,759,553.81
  5. Step 5: Solve for x
    x = 114,759,553.81/12,937.49
  6. Step 6: Final answer
    x = 8,870.31

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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.