Home / 18,289.90-25,239.70-10,223.52

Finding the Fourth Proportional to 18,289.90, 25,239.70 and 10,223.52

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Solution

The fourth proportional to 18,289.90, 25,239.70 and 10,223.52 is: 14,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.90 : 25,239.70 = 10,223.52 : x
  2. Step 2: Convert to fraction form
    18,289.90/25,239.70 = 10,223.52/x
  3. Step 3: Cross multiply
    18,289.90x = 25,239.70 × 10,223.52
  4. Step 4: Simplify right side
    18,289.90x = 258,038,495.87
  5. Step 5: Solve for x
    x = 258,038,495.87/18,289.90
  6. Step 6: Final answer
    x = 14,108.25

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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.