Home / 15,512.19-21,405.51-8,795.67

Finding the Fourth Proportional to 15,512.19, 21,405.51 and 8,795.67

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Solution

The fourth proportional to 15,512.19, 21,405.51 and 8,795.67 is: 12,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.19 : 21,405.51 = 8,795.67 : x
  2. Step 2: Convert to fraction form
    15,512.19/21,405.51 = 8,795.67/x
  3. Step 3: Cross multiply
    15,512.19x = 21,405.51 × 8,795.67
  4. Step 4: Simplify right side
    15,512.19x = 188,275,802.14
  5. Step 5: Solve for x
    x = 188,275,802.14/15,512.19
  6. Step 6: Final answer
    x = 12,137.28

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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.