Home / 15,408.34-21,263.46-8,334.74

Finding the Fourth Proportional to 15,408.34, 21,263.46 and 8,334.74

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Solution

The fourth proportional to 15,408.34, 21,263.46 and 8,334.74 is: 11,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.34 : 21,263.46 = 8,334.74 : x
  2. Step 2: Convert to fraction form
    15,408.34/21,263.46 = 8,334.74/x
  3. Step 3: Cross multiply
    15,408.34x = 21,263.46 × 8,334.74
  4. Step 4: Simplify right side
    15,408.34x = 177,225,410.60
  5. Step 5: Solve for x
    x = 177,225,410.60/15,408.34
  6. Step 6: Final answer
    x = 11,501.92

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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.