Home / 14,159.72-21,240.06-3,771.48

Finding the Fourth Proportional to 14,159.72, 21,240.06 and 3,771.48

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Solution

The fourth proportional to 14,159.72, 21,240.06 and 3,771.48 is: 5,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.72 : 21,240.06 = 3,771.48 : x
  2. Step 2: Convert to fraction form
    14,159.72/21,240.06 = 3,771.48/x
  3. Step 3: Cross multiply
    14,159.72x = 21,240.06 × 3,771.48
  4. Step 4: Simplify right side
    14,159.72x = 80,106,461.49
  5. Step 5: Solve for x
    x = 80,106,461.49/14,159.72
  6. Step 6: Final answer
    x = 5,657.35

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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.