Home / 14,156.91-19,533.56-7,869.15

Finding the Fourth Proportional to 14,156.91, 19,533.56 and 7,869.15

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Solution

The fourth proportional to 14,156.91, 19,533.56 and 7,869.15 is: 10,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.91 : 19,533.56 = 7,869.15 : x
  2. Step 2: Convert to fraction form
    14,156.91/19,533.56 = 7,869.15/x
  3. Step 3: Cross multiply
    14,156.91x = 19,533.56 × 7,869.15
  4. Step 4: Simplify right side
    14,156.91x = 153,712,474.33
  5. Step 5: Solve for x
    x = 153,712,474.33/14,156.91
  6. Step 6: Final answer
    x = 10,857.77

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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.