Home / 7,371.65-10,172.21-4,387.00

Finding the Fourth Proportional to 7,371.65, 10,172.21 and 4,387.00

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Solution

The fourth proportional to 7,371.65, 10,172.21 and 4,387.00 is: 6,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.65 : 10,172.21 = 4,387.00 : x
  2. Step 2: Convert to fraction form
    7,371.65/10,172.21 = 4,387.00/x
  3. Step 3: Cross multiply
    7,371.65x = 10,172.21 × 4,387.00
  4. Step 4: Simplify right side
    7,371.65x = 44,625,499.73
  5. Step 5: Solve for x
    x = 44,625,499.73/7,371.65
  6. Step 6: Final answer
    x = 6,053.67

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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.