Home / 12,837.74-17,715.93-7,173.05

Finding the Fourth Proportional to 12,837.74, 17,715.93 and 7,173.05

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Solution

The fourth proportional to 12,837.74, 17,715.93 and 7,173.05 is: 9,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.74 : 17,715.93 = 7,173.05 : x
  2. Step 2: Convert to fraction form
    12,837.74/17,715.93 = 7,173.05/x
  3. Step 3: Cross multiply
    12,837.74x = 17,715.93 × 7,173.05
  4. Step 4: Simplify right side
    12,837.74x = 127,077,163.11
  5. Step 5: Solve for x
    x = 127,077,163.11/12,837.74
  6. Step 6: Final answer
    x = 9,898.72

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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.