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Finding the Fourth Proportional to 14,384.89, 21,579.45 and 4,520.89

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Solution

The fourth proportional to 14,384.89, 21,579.45 and 4,520.89 is: 6,782.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,384.89 : 21,579.45 = 4,520.89 : x
  2. Step 2: Convert to fraction form
    14,384.89/21,579.45 = 4,520.89/x
  3. Step 3: Cross multiply
    14,384.89x = 21,579.45 × 4,520.89
  4. Step 4: Simplify right side
    14,384.89x = 97,558,319.71
  5. Step 5: Solve for x
    x = 97,558,319.71/14,384.89
  6. Step 6: Final answer
    x = 6,782.00

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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.