Home / 12,795.17-17,657.26-7,130.16

Finding the Fourth Proportional to 12,795.17, 17,657.26 and 7,130.16

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Solution

The fourth proportional to 12,795.17, 17,657.26 and 7,130.16 is: 9,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.17 : 17,657.26 = 7,130.16 : x
  2. Step 2: Convert to fraction form
    12,795.17/17,657.26 = 7,130.16/x
  3. Step 3: Cross multiply
    12,795.17x = 17,657.26 × 7,130.16
  4. Step 4: Simplify right side
    12,795.17x = 125,899,071.14
  5. Step 5: Solve for x
    x = 125,899,071.14/12,795.17
  6. Step 6: Final answer
    x = 9,839.58

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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.