Home / 12,429.55-18,643.71-4,637.75

Finding the Fourth Proportional to 12,429.55, 18,643.71 and 4,637.75

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Solution

The fourth proportional to 12,429.55, 18,643.71 and 4,637.75 is: 6,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.55 : 18,643.71 = 4,637.75 : x
  2. Step 2: Convert to fraction form
    12,429.55/18,643.71 = 4,637.75/x
  3. Step 3: Cross multiply
    12,429.55x = 18,643.71 × 4,637.75
  4. Step 4: Simplify right side
    12,429.55x = 86,464,866.05
  5. Step 5: Solve for x
    x = 86,464,866.05/12,429.55
  6. Step 6: Final answer
    x = 6,956.40

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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.