Home / 7,681.50-11,515.14-3,730.32

Finding the Fourth Proportional to 7,681.50, 11,515.14 and 3,730.32

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Solution

The fourth proportional to 7,681.50, 11,515.14 and 3,730.32 is: 5,592.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.50 : 11,515.14 = 3,730.32 : x
  2. Step 2: Convert to fraction form
    7,681.50/11,515.14 = 3,730.32/x
  3. Step 3: Cross multiply
    7,681.50x = 11,515.14 × 3,730.32
  4. Step 4: Simplify right side
    7,681.50x = 42,955,157.04
  5. Step 5: Solve for x
    x = 42,955,157.04/7,681.50
  6. Step 6: Final answer
    x = 5,592.03

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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.