Home / 13,755.60-20,643.53-9,302.76

Finding the Fourth Proportional to 13,755.60, 20,643.53 and 9,302.76

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Solution

The fourth proportional to 13,755.60, 20,643.53 and 9,302.76 is: 13,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.60 : 20,643.53 = 9,302.76 : x
  2. Step 2: Convert to fraction form
    13,755.60/20,643.53 = 9,302.76/x
  3. Step 3: Cross multiply
    13,755.60x = 20,643.53 × 9,302.76
  4. Step 4: Simplify right side
    13,755.60x = 192,041,758.63
  5. Step 5: Solve for x
    x = 192,041,758.63/13,755.60
  6. Step 6: Final answer
    x = 13,960.99

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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.