Home / 13,703.90-20,556.35-7,038.60

Finding the Fourth Proportional to 13,703.90, 20,556.35 and 7,038.60

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Solution

The fourth proportional to 13,703.90, 20,556.35 and 7,038.60 is: 10,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.90 : 20,556.35 = 7,038.60 : x
  2. Step 2: Convert to fraction form
    13,703.90/20,556.35 = 7,038.60/x
  3. Step 3: Cross multiply
    13,703.90x = 20,556.35 × 7,038.60
  4. Step 4: Simplify right side
    13,703.90x = 144,687,889.92
  5. Step 5: Solve for x
    x = 144,687,889.92/13,703.90
  6. Step 6: Final answer
    x = 10,558.15

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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.