Home / 10,974.15-15,140.25-6,994.35

Finding the Fourth Proportional to 10,974.15, 15,140.25 and 6,994.35

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Solution

The fourth proportional to 10,974.15, 15,140.25 and 6,994.35 is: 9,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.15 : 15,140.25 = 6,994.35 : x
  2. Step 2: Convert to fraction form
    10,974.15/15,140.25 = 6,994.35/x
  3. Step 3: Cross multiply
    10,974.15x = 15,140.25 × 6,994.35
  4. Step 4: Simplify right side
    10,974.15x = 105,896,207.59
  5. Step 5: Solve for x
    x = 105,896,207.59/10,974.15
  6. Step 6: Final answer
    x = 9,649.60

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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.