Home / 10,661.55-15,992.25-2,870.36

Finding the Fourth Proportional to 10,661.55, 15,992.25 and 2,870.36

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Solution

The fourth proportional to 10,661.55, 15,992.25 and 2,870.36 is: 4,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.55 : 15,992.25 = 2,870.36 : x
  2. Step 2: Convert to fraction form
    10,661.55/15,992.25 = 2,870.36/x
  3. Step 3: Cross multiply
    10,661.55x = 15,992.25 × 2,870.36
  4. Step 4: Simplify right side
    10,661.55x = 45,903,514.71
  5. Step 5: Solve for x
    x = 45,903,514.71/10,661.55
  6. Step 6: Final answer
    x = 4,305.52

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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.