Home / 14,154.19-19,532.79-7,866.56

Finding the Fourth Proportional to 14,154.19, 19,532.79 and 7,866.56

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Solution

The fourth proportional to 14,154.19, 19,532.79 and 7,866.56 is: 10,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.19 : 19,532.79 = 7,866.56 : x
  2. Step 2: Convert to fraction form
    14,154.19/19,532.79 = 7,866.56/x
  3. Step 3: Cross multiply
    14,154.19x = 19,532.79 × 7,866.56
  4. Step 4: Simplify right side
    14,154.19x = 153,655,913.33
  5. Step 5: Solve for x
    x = 153,655,913.33/14,154.19
  6. Step 6: Final answer
    x = 10,855.86

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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.