Home / 7,619.04-10,511.46-5,384.70

Finding the Fourth Proportional to 7,619.04, 10,511.46 and 5,384.70

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Solution

The fourth proportional to 7,619.04, 10,511.46 and 5,384.70 is: 7,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.04 : 10,511.46 = 5,384.70 : x
  2. Step 2: Convert to fraction form
    7,619.04/10,511.46 = 5,384.70/x
  3. Step 3: Cross multiply
    7,619.04x = 10,511.46 × 5,384.70
  4. Step 4: Simplify right side
    7,619.04x = 56,601,058.66
  5. Step 5: Solve for x
    x = 56,601,058.66/7,619.04
  6. Step 6: Final answer
    x = 7,428.90

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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.