Home / 12,648.23-17,455.53-6,984.07

Finding the Fourth Proportional to 12,648.23, 17,455.53 and 6,984.07

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Solution

The fourth proportional to 12,648.23, 17,455.53 and 6,984.07 is: 9,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.23 : 17,455.53 = 6,984.07 : x
  2. Step 2: Convert to fraction form
    12,648.23/17,455.53 = 6,984.07/x
  3. Step 3: Cross multiply
    12,648.23x = 17,455.53 × 6,984.07
  4. Step 4: Simplify right side
    12,648.23x = 121,910,643.41
  5. Step 5: Solve for x
    x = 121,910,643.41/12,648.23
  6. Step 6: Final answer
    x = 9,638.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.