Home / 10,522.99-15,783.40-6,615.55

Finding the Fourth Proportional to 10,522.99, 15,783.40 and 6,615.55

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Solution

The fourth proportional to 10,522.99, 15,783.40 and 6,615.55 is: 9,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.99 : 15,783.40 = 6,615.55 : x
  2. Step 2: Convert to fraction form
    10,522.99/15,783.40 = 6,615.55/x
  3. Step 3: Cross multiply
    10,522.99x = 15,783.40 × 6,615.55
  4. Step 4: Simplify right side
    10,522.99x = 104,415,871.87
  5. Step 5: Solve for x
    x = 104,415,871.87/10,522.99
  6. Step 6: Final answer
    x = 9,922.64

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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.