Home / 12,795.53-17,657.51-7,130.25

Finding the Fourth Proportional to 12,795.53, 17,657.51 and 7,130.25

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Solution

The fourth proportional to 12,795.53, 17,657.51 and 7,130.25 is: 9,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.53 : 17,657.51 = 7,130.25 : x
  2. Step 2: Convert to fraction form
    12,795.53/17,657.51 = 7,130.25/x
  3. Step 3: Cross multiply
    12,795.53x = 17,657.51 × 7,130.25
  4. Step 4: Simplify right side
    12,795.53x = 125,902,425.03
  5. Step 5: Solve for x
    x = 125,902,425.03/12,795.53
  6. Step 6: Final answer
    x = 9,839.57

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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.