Home / 10,887.56-16,330.13-2,990.67

Finding the Fourth Proportional to 10,887.56, 16,330.13 and 2,990.67

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Solution

The fourth proportional to 10,887.56, 16,330.13 and 2,990.67 is: 4,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.56 : 16,330.13 = 2,990.67 : x
  2. Step 2: Convert to fraction form
    10,887.56/16,330.13 = 2,990.67/x
  3. Step 3: Cross multiply
    10,887.56x = 16,330.13 × 2,990.67
  4. Step 4: Simplify right side
    10,887.56x = 48,838,014.93
  5. Step 5: Solve for x
    x = 48,838,014.93/10,887.56
  6. Step 6: Final answer
    x = 4,485.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.