Home / 13,663.46-20,488.30-6,261.68

Finding the Fourth Proportional to 13,663.46, 20,488.30 and 6,261.68

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Solution

The fourth proportional to 13,663.46, 20,488.30 and 6,261.68 is: 9,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.46 : 20,488.30 = 6,261.68 : x
  2. Step 2: Convert to fraction form
    13,663.46/20,488.30 = 6,261.68/x
  3. Step 3: Cross multiply
    13,663.46x = 20,488.30 × 6,261.68
  4. Step 4: Simplify right side
    13,663.46x = 128,291,178.34
  5. Step 5: Solve for x
    x = 128,291,178.34/13,663.46
  6. Step 6: Final answer
    x = 9,389.36

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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.