Home / 26,556.90-39,830.76-9,915.18

Finding the Fourth Proportional to 26,556.90, 39,830.76 and 9,915.18

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Solution

The fourth proportional to 26,556.90, 39,830.76 and 9,915.18 is: 14,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,556.90 : 39,830.76 = 9,915.18 : x
  2. Step 2: Convert to fraction form
    26,556.90/39,830.76 = 9,915.18/x
  3. Step 3: Cross multiply
    26,556.90x = 39,830.76 × 9,915.18
  4. Step 4: Simplify right side
    26,556.90x = 394,929,154.94
  5. Step 5: Solve for x
    x = 394,929,154.94/26,556.90
  6. Step 6: Final answer
    x = 14,871.06

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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.