Home / 10,509.62-15,764.40-3,113.51

Finding the Fourth Proportional to 10,509.62, 15,764.40 and 3,113.51

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Solution

The fourth proportional to 10,509.62, 15,764.40 and 3,113.51 is: 4,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.62 : 15,764.40 = 3,113.51 : x
  2. Step 2: Convert to fraction form
    10,509.62/15,764.40 = 3,113.51/x
  3. Step 3: Cross multiply
    10,509.62x = 15,764.40 × 3,113.51
  4. Step 4: Simplify right side
    10,509.62x = 49,082,538.22
  5. Step 5: Solve for x
    x = 49,082,538.22/10,509.62
  6. Step 6: Final answer
    x = 4,670.25

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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.