Home / 12,738.63-19,111.59-6,493.53

Finding the Fourth Proportional to 12,738.63, 19,111.59 and 6,493.53

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Solution

The fourth proportional to 12,738.63, 19,111.59 and 6,493.53 is: 9,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.63 : 19,111.59 = 6,493.53 : x
  2. Step 2: Convert to fraction form
    12,738.63/19,111.59 = 6,493.53/x
  3. Step 3: Cross multiply
    12,738.63x = 19,111.59 × 6,493.53
  4. Step 4: Simplify right side
    12,738.63x = 124,101,683.01
  5. Step 5: Solve for x
    x = 124,101,683.01/12,738.63
  6. Step 6: Final answer
    x = 9,742.15

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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.