Home / 19,195.40-28,777.10-8,110.60

Finding the Fourth Proportional to 19,195.40, 28,777.10 and 8,110.60

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Solution

The fourth proportional to 19,195.40, 28,777.10 and 8,110.60 is: 12,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.40 : 28,777.10 = 8,110.60 : x
  2. Step 2: Convert to fraction form
    19,195.40/28,777.10 = 8,110.60/x
  3. Step 3: Cross multiply
    19,195.40x = 28,777.10 × 8,110.60
  4. Step 4: Simplify right side
    19,195.40x = 233,399,547.26
  5. Step 5: Solve for x
    x = 233,399,547.26/19,195.40
  6. Step 6: Final answer
    x = 12,159.14

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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.