Home / 12,984.93-19,477.40-3,124.22

Finding the Fourth Proportional to 12,984.93, 19,477.40 and 3,124.22

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Solution

The fourth proportional to 12,984.93, 19,477.40 and 3,124.22 is: 4,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.93 : 19,477.40 = 3,124.22 : x
  2. Step 2: Convert to fraction form
    12,984.93/19,477.40 = 3,124.22/x
  3. Step 3: Cross multiply
    12,984.93x = 19,477.40 × 3,124.22
  4. Step 4: Simplify right side
    12,984.93x = 60,851,682.63
  5. Step 5: Solve for x
    x = 60,851,682.63/12,984.93
  6. Step 6: Final answer
    x = 4,686.33

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Similar ratio
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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.