Home / 7,004.89-10,510.98-5,515

Finding the Fourth Proportional to 7,004.89, 10,510.98 and 5,515

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Solution

The fourth proportional to 7,004.89, 10,510.98 and 5,515 is: 8,275.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,004.89 : 10,510.98 = 5,515 : x
  2. Step 2: Convert to fraction form
    7,004.89/10,510.98 = 5,515/x
  3. Step 3: Cross multiply
    7,004.89x = 10,510.98 × 5,515
  4. Step 4: Simplify right side
    7,004.89x = 57,968,054.70
  5. Step 5: Solve for x
    x = 57,968,054.70/7,004.89
  6. Step 6: Final answer
    x = 8,275.37

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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.