Home / 9,240.16-12,750.24-5,260.72

Finding the Fourth Proportional to 9,240.16, 12,750.24 and 5,260.72

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Solution

The fourth proportional to 9,240.16, 12,750.24 and 5,260.72 is: 7,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.16 : 12,750.24 = 5,260.72 : x
  2. Step 2: Convert to fraction form
    9,240.16/12,750.24 = 5,260.72/x
  3. Step 3: Cross multiply
    9,240.16x = 12,750.24 × 5,260.72
  4. Step 4: Simplify right side
    9,240.16x = 67,075,442.57
  5. Step 5: Solve for x
    x = 67,075,442.57/9,240.16
  6. Step 6: Final answer
    x = 7,259.12

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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.