Home / 19,605.06-29,407.59-7,122.76

Finding the Fourth Proportional to 19,605.06, 29,407.59 and 7,122.76

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Solution

The fourth proportional to 19,605.06, 29,407.59 and 7,122.76 is: 10,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.06 : 29,407.59 = 7,122.76 : x
  2. Step 2: Convert to fraction form
    19,605.06/29,407.59 = 7,122.76/x
  3. Step 3: Cross multiply
    19,605.06x = 29,407.59 × 7,122.76
  4. Step 4: Simplify right side
    19,605.06x = 209,463,132.23
  5. Step 5: Solve for x
    x = 209,463,132.23/19,605.06
  6. Step 6: Final answer
    x = 10,684.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.