Home / 9,240.31-12,750.69-5,260.60

Finding the Fourth Proportional to 9,240.31, 12,750.69 and 5,260.60

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Solution

The fourth proportional to 9,240.31, 12,750.69 and 5,260.60 is: 7,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.31 : 12,750.69 = 5,260.60 : x
  2. Step 2: Convert to fraction form
    9,240.31/12,750.69 = 5,260.60/x
  3. Step 3: Cross multiply
    9,240.31x = 12,750.69 × 5,260.60
  4. Step 4: Simplify right side
    9,240.31x = 67,076,279.81
  5. Step 5: Solve for x
    x = 67,076,279.81/9,240.31
  6. Step 6: Final answer
    x = 7,259.09

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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.