Home / 7,328.90-10,981.20-6,089.60

Finding the Fourth Proportional to 7,328.90, 10,981.20 and 6,089.60

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Solution

The fourth proportional to 7,328.90, 10,981.20 and 6,089.60 is: 9,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.90 : 10,981.20 = 6,089.60 : x
  2. Step 2: Convert to fraction form
    7,328.90/10,981.20 = 6,089.60/x
  3. Step 3: Cross multiply
    7,328.90x = 10,981.20 × 6,089.60
  4. Step 4: Simplify right side
    7,328.90x = 66,871,115.52
  5. Step 5: Solve for x
    x = 66,871,115.52/7,328.90
  6. Step 6: Final answer
    x = 9,124.30

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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.