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Finding the Fourth Proportional to 14,643, 21,964.36 and 4,782.24

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Solution

The fourth proportional to 14,643, 21,964.36 and 4,782.24 is: 7,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643 : 21,964.36 = 4,782.24 : x
  2. Step 2: Convert to fraction form
    14,643/21,964.36 = 4,782.24/x
  3. Step 3: Cross multiply
    14,643x = 21,964.36 × 4,782.24
  4. Step 4: Simplify right side
    14,643x = 105,038,840.97
  5. Step 5: Solve for x
    x = 105,038,840.97/14,643
  6. Step 6: Final answer
    x = 7,173.31

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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.