Home / 10,005.51-15,009.89-3,080.01

Finding the Fourth Proportional to 10,005.51, 15,009.89 and 3,080.01

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Solution

The fourth proportional to 10,005.51, 15,009.89 and 3,080.01 is: 4,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.51 : 15,009.89 = 3,080.01 : x
  2. Step 2: Convert to fraction form
    10,005.51/15,009.89 = 3,080.01/x
  3. Step 3: Cross multiply
    10,005.51x = 15,009.89 × 3,080.01
  4. Step 4: Simplify right side
    10,005.51x = 46,230,595.90
  5. Step 5: Solve for x
    x = 46,230,595.90/10,005.51
  6. Step 6: Final answer
    x = 4,620.51

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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.