Home / 9,120.36-12,586.08-4,928.60

Finding the Fourth Proportional to 9,120.36, 12,586.08 and 4,928.60

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Solution

The fourth proportional to 9,120.36, 12,586.08 and 4,928.60 is: 6,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.36 : 12,586.08 = 4,928.60 : x
  2. Step 2: Convert to fraction form
    9,120.36/12,586.08 = 4,928.60/x
  3. Step 3: Cross multiply
    9,120.36x = 12,586.08 × 4,928.60
  4. Step 4: Simplify right side
    9,120.36x = 62,031,753.89
  5. Step 5: Solve for x
    x = 62,031,753.89/9,120.36
  6. Step 6: Final answer
    x = 6,801.46

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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.