Home / 13,798.77-20,685.68-5,031.63

Finding the Fourth Proportional to 13,798.77, 20,685.68 and 5,031.63

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Solution

The fourth proportional to 13,798.77, 20,685.68 and 5,031.63 is: 7,542.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.77 : 20,685.68 = 5,031.63 : x
  2. Step 2: Convert to fraction form
    13,798.77/20,685.68 = 5,031.63/x
  3. Step 3: Cross multiply
    13,798.77x = 20,685.68 × 5,031.63
  4. Step 4: Simplify right side
    13,798.77x = 104,082,662.90
  5. Step 5: Solve for x
    x = 104,082,662.90/13,798.77
  6. Step 6: Final answer
    x = 7,542.89

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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.