Home / 12,784.16-19,180.86-4,465.40

Finding the Fourth Proportional to 12,784.16, 19,180.86 and 4,465.40

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Solution

The fourth proportional to 12,784.16, 19,180.86 and 4,465.40 is: 6,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.16 : 19,180.86 = 4,465.40 : x
  2. Step 2: Convert to fraction form
    12,784.16/19,180.86 = 4,465.40/x
  3. Step 3: Cross multiply
    12,784.16x = 19,180.86 × 4,465.40
  4. Step 4: Simplify right side
    12,784.16x = 85,650,212.24
  5. Step 5: Solve for x
    x = 85,650,212.24/12,784.16
  6. Step 6: Final answer
    x = 6,699.71

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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.