Home / 12,907.16-19,324.02-8,511.20

Finding the Fourth Proportional to 12,907.16, 19,324.02 and 8,511.20

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Solution

The fourth proportional to 12,907.16, 19,324.02 and 8,511.20 is: 12,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.16 : 19,324.02 = 8,511.20 : x
  2. Step 2: Convert to fraction form
    12,907.16/19,324.02 = 8,511.20/x
  3. Step 3: Cross multiply
    12,907.16x = 19,324.02 × 8,511.20
  4. Step 4: Simplify right side
    12,907.16x = 164,470,599.02
  5. Step 5: Solve for x
    x = 164,470,599.02/12,907.16
  6. Step 6: Final answer
    x = 12,742.59

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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.