Home / 13,172.47-19,754.69-6,929.04

Finding the Fourth Proportional to 13,172.47, 19,754.69 and 6,929.04

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Solution

The fourth proportional to 13,172.47, 19,754.69 and 6,929.04 is: 10,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.47 : 19,754.69 = 6,929.04 : x
  2. Step 2: Convert to fraction form
    13,172.47/19,754.69 = 6,929.04/x
  3. Step 3: Cross multiply
    13,172.47x = 19,754.69 × 6,929.04
  4. Step 4: Simplify right side
    13,172.47x = 136,881,076.63
  5. Step 5: Solve for x
    x = 136,881,076.63/13,172.47
  6. Step 6: Final answer
    x = 10,391.45

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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.