Home / 9,312.22-12,850.95-5,120.50

Finding the Fourth Proportional to 9,312.22, 12,850.95 and 5,120.50

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Solution

The fourth proportional to 9,312.22, 12,850.95 and 5,120.50 is: 7,066.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.22 : 12,850.95 = 5,120.50 : x
  2. Step 2: Convert to fraction form
    9,312.22/12,850.95 = 5,120.50/x
  3. Step 3: Cross multiply
    9,312.22x = 12,850.95 × 5,120.50
  4. Step 4: Simplify right side
    9,312.22x = 65,803,289.48
  5. Step 5: Solve for x
    x = 65,803,289.48/9,312.22
  6. Step 6: Final answer
    x = 7,066.34

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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.