Home / 9,688.78-14,532.36-3,113.20

Finding the Fourth Proportional to 9,688.78, 14,532.36 and 3,113.20

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Solution

The fourth proportional to 9,688.78, 14,532.36 and 3,113.20 is: 4,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.78 : 14,532.36 = 3,113.20 : x
  2. Step 2: Convert to fraction form
    9,688.78/14,532.36 = 3,113.20/x
  3. Step 3: Cross multiply
    9,688.78x = 14,532.36 × 3,113.20
  4. Step 4: Simplify right side
    9,688.78x = 45,242,143.15
  5. Step 5: Solve for x
    x = 45,242,143.15/9,688.78
  6. Step 6: Final answer
    x = 4,669.54

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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.