Home / 10,159.85-14,013.06-7,172.57

Finding the Fourth Proportional to 10,159.85, 14,013.06 and 7,172.57

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Solution

The fourth proportional to 10,159.85, 14,013.06 and 7,172.57 is: 9,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.85 : 14,013.06 = 7,172.57 : x
  2. Step 2: Convert to fraction form
    10,159.85/14,013.06 = 7,172.57/x
  3. Step 3: Cross multiply
    10,159.85x = 14,013.06 × 7,172.57
  4. Step 4: Simplify right side
    10,159.85x = 100,509,653.76
  5. Step 5: Solve for x
    x = 100,509,653.76/10,159.85
  6. Step 6: Final answer
    x = 9,892.83

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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.