Home / 12,927.58-19,353.09-7,981.32

Finding the Fourth Proportional to 12,927.58, 19,353.09 and 7,981.32

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Solution

The fourth proportional to 12,927.58, 19,353.09 and 7,981.32 is: 11,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.58 : 19,353.09 = 7,981.32 : x
  2. Step 2: Convert to fraction form
    12,927.58/19,353.09 = 7,981.32/x
  3. Step 3: Cross multiply
    12,927.58x = 19,353.09 × 7,981.32
  4. Step 4: Simplify right side
    12,927.58x = 154,463,204.28
  5. Step 5: Solve for x
    x = 154,463,204.28/12,927.58
  6. Step 6: Final answer
    x = 11,948.35

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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.