Home / 14,281.48-21,424.74-5,515.66

Finding the Fourth Proportional to 14,281.48, 21,424.74 and 5,515.66

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Solution

The fourth proportional to 14,281.48, 21,424.74 and 5,515.66 is: 8,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.48 : 21,424.74 = 5,515.66 : x
  2. Step 2: Convert to fraction form
    14,281.48/21,424.74 = 5,515.66/x
  3. Step 3: Cross multiply
    14,281.48x = 21,424.74 × 5,515.66
  4. Step 4: Simplify right side
    14,281.48x = 118,171,581.43
  5. Step 5: Solve for x
    x = 118,171,581.43/14,281.48
  6. Step 6: Final answer
    x = 8,274.46

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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.