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Finding the Fourth Proportional to 15,594.19, 21,520.01 and 8,520.59

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Solution

The fourth proportional to 15,594.19, 21,520.01 and 8,520.59 is: 11,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.19 : 21,520.01 = 8,520.59 : x
  2. Step 2: Convert to fraction form
    15,594.19/21,520.01 = 8,520.59/x
  3. Step 3: Cross multiply
    15,594.19x = 21,520.01 × 8,520.59
  4. Step 4: Simplify right side
    15,594.19x = 183,363,257.11
  5. Step 5: Solve for x
    x = 183,363,257.11/15,594.19
  6. Step 6: Final answer
    x = 11,758.44

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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.