Home / 14,415.36-21,630.60-7,490.40

Finding the Fourth Proportional to 14,415.36, 21,630.60 and 7,490.40

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Solution

The fourth proportional to 14,415.36, 21,630.60 and 7,490.40 is: 11,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.36 : 21,630.60 = 7,490.40 : x
  2. Step 2: Convert to fraction form
    14,415.36/21,630.60 = 7,490.40/x
  3. Step 3: Cross multiply
    14,415.36x = 21,630.60 × 7,490.40
  4. Step 4: Simplify right side
    14,415.36x = 162,021,846.24
  5. Step 5: Solve for x
    x = 162,021,846.24/14,415.36
  6. Step 6: Final answer
    x = 11,239.53

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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.