Home / 12,985.32-19,477.99-10,028.09

Finding the Fourth Proportional to 12,985.32, 19,477.99 and 10,028.09

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Solution

The fourth proportional to 12,985.32, 19,477.99 and 10,028.09 is: 15,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.32 : 19,477.99 = 10,028.09 : x
  2. Step 2: Convert to fraction form
    12,985.32/19,477.99 = 10,028.09/x
  3. Step 3: Cross multiply
    12,985.32x = 19,477.99 × 10,028.09
  4. Step 4: Simplify right side
    12,985.32x = 195,327,036.74
  5. Step 5: Solve for x
    x = 195,327,036.74/12,985.32
  6. Step 6: Final answer
    x = 15,042.14

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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.