Home / 12,918.02-19,360.78-6,994.67

Finding the Fourth Proportional to 12,918.02, 19,360.78 and 6,994.67

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Solution

The fourth proportional to 12,918.02, 19,360.78 and 6,994.67 is: 10,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.02 : 19,360.78 = 6,994.67 : x
  2. Step 2: Convert to fraction form
    12,918.02/19,360.78 = 6,994.67/x
  3. Step 3: Cross multiply
    12,918.02x = 19,360.78 × 6,994.67
  4. Step 4: Simplify right side
    12,918.02x = 135,422,267.04
  5. Step 5: Solve for x
    x = 135,422,267.04/12,918.02
  6. Step 6: Final answer
    x = 10,483.21

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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.