Home / 9,135.51-12,608.40-6,629.00

Finding the Fourth Proportional to 9,135.51, 12,608.40 and 6,629.00

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Solution

The fourth proportional to 9,135.51, 12,608.40 and 6,629.00 is: 9,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.51 : 12,608.40 = 6,629.00 : x
  2. Step 2: Convert to fraction form
    9,135.51/12,608.40 = 6,629.00/x
  3. Step 3: Cross multiply
    9,135.51x = 12,608.40 × 6,629.00
  4. Step 4: Simplify right side
    9,135.51x = 83,581,087.46
  5. Step 5: Solve for x
    x = 83,581,087.46/9,135.51
  6. Step 6: Final answer
    x = 9,149.03

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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.