Home / 13,670.76-20,509.34-4,436.76

Finding the Fourth Proportional to 13,670.76, 20,509.34 and 4,436.76

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Solution

The fourth proportional to 13,670.76, 20,509.34 and 4,436.76 is: 6,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.76 : 20,509.34 = 4,436.76 : x
  2. Step 2: Convert to fraction form
    13,670.76/20,509.34 = 4,436.76/x
  3. Step 3: Cross multiply
    13,670.76x = 20,509.34 × 4,436.76
  4. Step 4: Simplify right side
    13,670.76x = 90,995,019.34
  5. Step 5: Solve for x
    x = 90,995,019.34/13,670.76
  6. Step 6: Final answer
    x = 6,656.18

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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.