Home / 10,974.42-15,145.79-6,259.41

Finding the Fourth Proportional to 10,974.42, 15,145.79 and 6,259.41

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Solution

The fourth proportional to 10,974.42, 15,145.79 and 6,259.41 is: 8,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.42 : 15,145.79 = 6,259.41 : x
  2. Step 2: Convert to fraction form
    10,974.42/15,145.79 = 6,259.41/x
  3. Step 3: Cross multiply
    10,974.42x = 15,145.79 × 6,259.41
  4. Step 4: Simplify right side
    10,974.42x = 94,803,678.09
  5. Step 5: Solve for x
    x = 94,803,678.09/10,974.42
  6. Step 6: Final answer
    x = 8,638.60

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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.