Home / 10,521.67-15,782.55-2,730.55

Finding the Fourth Proportional to 10,521.67, 15,782.55 and 2,730.55

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Solution

The fourth proportional to 10,521.67, 15,782.55 and 2,730.55 is: 4,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.67 : 15,782.55 = 2,730.55 : x
  2. Step 2: Convert to fraction form
    10,521.67/15,782.55 = 2,730.55/x
  3. Step 3: Cross multiply
    10,521.67x = 15,782.55 × 2,730.55
  4. Step 4: Simplify right side
    10,521.67x = 43,095,041.90
  5. Step 5: Solve for x
    x = 43,095,041.90/10,521.67
  6. Step 6: Final answer
    x = 4,095.84

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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.