Home / 7,000.84-10,485.39-5,428.24

Finding the Fourth Proportional to 7,000.84, 10,485.39 and 5,428.24

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Solution

The fourth proportional to 7,000.84, 10,485.39 and 5,428.24 is: 8,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.84 : 10,485.39 = 5,428.24 : x
  2. Step 2: Convert to fraction form
    7,000.84/10,485.39 = 5,428.24/x
  3. Step 3: Cross multiply
    7,000.84x = 10,485.39 × 5,428.24
  4. Step 4: Simplify right side
    7,000.84x = 56,917,213.41
  5. Step 5: Solve for x
    x = 56,917,213.41/7,000.84
  6. Step 6: Final answer
    x = 8,130.05

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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.