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Finding the Fourth Proportional to 15,006.84, 20,709.72 and 8,292.84

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Solution

The fourth proportional to 15,006.84, 20,709.72 and 8,292.84 is: 11,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.84 : 20,709.72 = 8,292.84 : x
  2. Step 2: Convert to fraction form
    15,006.84/20,709.72 = 8,292.84/x
  3. Step 3: Cross multiply
    15,006.84x = 20,709.72 × 8,292.84
  4. Step 4: Simplify right side
    15,006.84x = 171,742,394.40
  5. Step 5: Solve for x
    x = 171,742,394.40/15,006.84
  6. Step 6: Final answer
    x = 11,444.27

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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.