Home / 15,595.10-21,520.98-8,521.36

Finding the Fourth Proportional to 15,595.10, 21,520.98 and 8,521.36

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Solution

The fourth proportional to 15,595.10, 21,520.98 and 8,521.36 is: 11,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.10 : 21,520.98 = 8,521.36 : x
  2. Step 2: Convert to fraction form
    15,595.10/21,520.98 = 8,521.36/x
  3. Step 3: Cross multiply
    15,595.10x = 21,520.98 × 8,521.36
  4. Step 4: Simplify right side
    15,595.10x = 183,388,018.13
  5. Step 5: Solve for x
    x = 183,388,018.13/15,595.10
  6. Step 6: Final answer
    x = 11,759.34

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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.