Home / 13,907.34-19,192.68-7,939.06

Finding the Fourth Proportional to 13,907.34, 19,192.68 and 7,939.06

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Solution

The fourth proportional to 13,907.34, 19,192.68 and 7,939.06 is: 10,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.34 : 19,192.68 = 7,939.06 : x
  2. Step 2: Convert to fraction form
    13,907.34/19,192.68 = 7,939.06/x
  3. Step 3: Cross multiply
    13,907.34x = 19,192.68 × 7,939.06
  4. Step 4: Simplify right side
    13,907.34x = 152,371,838.08
  5. Step 5: Solve for x
    x = 152,371,838.08/13,907.34
  6. Step 6: Final answer
    x = 10,956.22

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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.