Home / 8,749.40-13,125.70-3,555.80

Finding the Fourth Proportional to 8,749.40, 13,125.70 and 3,555.80

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Solution

The fourth proportional to 8,749.40, 13,125.70 and 3,555.80 is: 5,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.40 : 13,125.70 = 3,555.80 : x
  2. Step 2: Convert to fraction form
    8,749.40/13,125.70 = 3,555.80/x
  3. Step 3: Cross multiply
    8,749.40x = 13,125.70 × 3,555.80
  4. Step 4: Simplify right side
    8,749.40x = 46,672,364.06
  5. Step 5: Solve for x
    x = 46,672,364.06/8,749.40
  6. Step 6: Final answer
    x = 5,334.35

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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.