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Finding the Fourth Proportional to 14,429.29, 21,643.95 and 7,868.29

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Solution

The fourth proportional to 14,429.29, 21,643.95 and 7,868.29 is: 11,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.29 : 21,643.95 = 7,868.29 : x
  2. Step 2: Convert to fraction form
    14,429.29/21,643.95 = 7,868.29/x
  3. Step 3: Cross multiply
    14,429.29x = 21,643.95 × 7,868.29
  4. Step 4: Simplify right side
    14,429.29x = 170,300,875.35
  5. Step 5: Solve for x
    x = 170,300,875.35/14,429.29
  6. Step 6: Final answer
    x = 11,802.44

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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.