Home / 9,240.16-13,840.56-7,477.60

Finding the Fourth Proportional to 9,240.16, 13,840.56 and 7,477.60

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Solution

The fourth proportional to 9,240.16, 13,840.56 and 7,477.60 is: 11,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.16 : 13,840.56 = 7,477.60 : x
  2. Step 2: Convert to fraction form
    9,240.16/13,840.56 = 7,477.60/x
  3. Step 3: Cross multiply
    9,240.16x = 13,840.56 × 7,477.60
  4. Step 4: Simplify right side
    9,240.16x = 103,494,171.46
  5. Step 5: Solve for x
    x = 103,494,171.46/9,240.16
  6. Step 6: Final answer
    x = 11,200.47

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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.