Home / 14,140.41-19,513.81-7,852.78

Finding the Fourth Proportional to 14,140.41, 19,513.81 and 7,852.78

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Solution

The fourth proportional to 14,140.41, 19,513.81 and 7,852.78 is: 10,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.41 : 19,513.81 = 7,852.78 : x
  2. Step 2: Convert to fraction form
    14,140.41/19,513.81 = 7,852.78/x
  3. Step 3: Cross multiply
    14,140.41x = 19,513.81 × 7,852.78
  4. Step 4: Simplify right side
    14,140.41x = 153,237,691.10
  5. Step 5: Solve for x
    x = 153,237,691.10/14,140.41
  6. Step 6: Final answer
    x = 10,836.87

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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.