Home / 19,151.40-28,729.98-9,786.36

Finding the Fourth Proportional to 19,151.40, 28,729.98 and 9,786.36

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Solution

The fourth proportional to 19,151.40, 28,729.98 and 9,786.36 is: 14,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.40 : 28,729.98 = 9,786.36 : x
  2. Step 2: Convert to fraction form
    19,151.40/28,729.98 = 9,786.36/x
  3. Step 3: Cross multiply
    19,151.40x = 28,729.98 × 9,786.36
  4. Step 4: Simplify right side
    19,151.40x = 281,161,927.07
  5. Step 5: Solve for x
    x = 281,161,927.07/19,151.40
  6. Step 6: Final answer
    x = 14,681.01

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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.