Home / 13,907.16-19,193.49-7,939.69

Finding the Fourth Proportional to 13,907.16, 19,193.49 and 7,939.69

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Solution

The fourth proportional to 13,907.16, 19,193.49 and 7,939.69 is: 10,957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.16 : 19,193.49 = 7,939.69 : x
  2. Step 2: Convert to fraction form
    13,907.16/19,193.49 = 7,939.69/x
  3. Step 3: Cross multiply
    13,907.16x = 19,193.49 × 7,939.69
  4. Step 4: Simplify right side
    13,907.16x = 152,390,312.63
  5. Step 5: Solve for x
    x = 152,390,312.63/13,907.16
  6. Step 6: Final answer
    x = 10,957.69

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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.