Home / 12,830.19-17,707.20-7,795.23

Finding the Fourth Proportional to 12,830.19, 17,707.20 and 7,795.23

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Solution

The fourth proportional to 12,830.19, 17,707.20 and 7,795.23 is: 10,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.19 : 17,707.20 = 7,795.23 : x
  2. Step 2: Convert to fraction form
    12,830.19/17,707.20 = 7,795.23/x
  3. Step 3: Cross multiply
    12,830.19x = 17,707.20 × 7,795.23
  4. Step 4: Simplify right side
    12,830.19x = 138,031,696.66
  5. Step 5: Solve for x
    x = 138,031,696.66/12,830.19
  6. Step 6: Final answer
    x = 10,758.35

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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.