Home / 14,438.79-19,919.60-9,724.59

Finding the Fourth Proportional to 14,438.79, 19,919.60 and 9,724.59

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Solution

The fourth proportional to 14,438.79, 19,919.60 and 9,724.59 is: 13,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.79 : 19,919.60 = 9,724.59 : x
  2. Step 2: Convert to fraction form
    14,438.79/19,919.60 = 9,724.59/x
  3. Step 3: Cross multiply
    14,438.79x = 19,919.60 × 9,724.59
  4. Step 4: Simplify right side
    14,438.79x = 193,709,894.34
  5. Step 5: Solve for x
    x = 193,709,894.34/14,438.79
  6. Step 6: Final answer
    x = 13,415.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.