Home / 14,289.40-19,709.89-11,300.50

Finding the Fourth Proportional to 14,289.40, 19,709.89 and 11,300.50

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Solution

The fourth proportional to 14,289.40, 19,709.89 and 11,300.50 is: 15,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.40 : 19,709.89 = 11,300.50 : x
  2. Step 2: Convert to fraction form
    14,289.40/19,709.89 = 11,300.50/x
  3. Step 3: Cross multiply
    14,289.40x = 19,709.89 × 11,300.50
  4. Step 4: Simplify right side
    14,289.40x = 222,731,611.95
  5. Step 5: Solve for x
    x = 222,731,611.95/14,289.40
  6. Step 6: Final answer
    x = 15,587.19

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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.