Home / 15,334.95-21,162.60-8,529.06

Finding the Fourth Proportional to 15,334.95, 21,162.60 and 8,529.06

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Solution

The fourth proportional to 15,334.95, 21,162.60 and 8,529.06 is: 11,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.95 : 21,162.60 = 8,529.06 : x
  2. Step 2: Convert to fraction form
    15,334.95/21,162.60 = 8,529.06/x
  3. Step 3: Cross multiply
    15,334.95x = 21,162.60 × 8,529.06
  4. Step 4: Simplify right side
    15,334.95x = 180,497,085.16
  5. Step 5: Solve for x
    x = 180,497,085.16/15,334.95
  6. Step 6: Final answer
    x = 11,770.31

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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.