Home / 13,555.76-20,333.16-4,790.34

Finding the Fourth Proportional to 13,555.76, 20,333.16 and 4,790.34

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Solution

The fourth proportional to 13,555.76, 20,333.16 and 4,790.34 is: 7,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.76 : 20,333.16 = 4,790.34 : x
  2. Step 2: Convert to fraction form
    13,555.76/20,333.16 = 4,790.34/x
  3. Step 3: Cross multiply
    13,555.76x = 20,333.16 × 4,790.34
  4. Step 4: Simplify right side
    13,555.76x = 97,402,749.67
  5. Step 5: Solve for x
    x = 97,402,749.67/13,555.76
  6. Step 6: Final answer
    x = 7,185.34

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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.