Home / 10,521.88-15,782.80-2,730.68

Finding the Fourth Proportional to 10,521.88, 15,782.80 and 2,730.68

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Solution

The fourth proportional to 10,521.88, 15,782.80 and 2,730.68 is: 4,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.88 : 15,782.80 = 2,730.68 : x
  2. Step 2: Convert to fraction form
    10,521.88/15,782.80 = 2,730.68/x
  3. Step 3: Cross multiply
    10,521.88x = 15,782.80 × 2,730.68
  4. Step 4: Simplify right side
    10,521.88x = 43,097,776.30
  5. Step 5: Solve for x
    x = 43,097,776.30/10,521.88
  6. Step 6: Final answer
    x = 4,096.01

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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.