Home / 14,259.30-21,388.96-7,688.58

Finding the Fourth Proportional to 14,259.30, 21,388.96 and 7,688.58

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Solution

The fourth proportional to 14,259.30, 21,388.96 and 7,688.58 is: 11,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.30 : 21,388.96 = 7,688.58 : x
  2. Step 2: Convert to fraction form
    14,259.30/21,388.96 = 7,688.58/x
  3. Step 3: Cross multiply
    14,259.30x = 21,388.96 × 7,688.58
  4. Step 4: Simplify right side
    14,259.30x = 164,450,730.08
  5. Step 5: Solve for x
    x = 164,450,730.08/14,259.30
  6. Step 6: Final answer
    x = 11,532.88

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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.