Home / 13,971.32-19,274.95-7,999.77

Finding the Fourth Proportional to 13,971.32, 19,274.95 and 7,999.77

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Solution

The fourth proportional to 13,971.32, 19,274.95 and 7,999.77 is: 11,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.32 : 19,274.95 = 7,999.77 : x
  2. Step 2: Convert to fraction form
    13,971.32/19,274.95 = 7,999.77/x
  3. Step 3: Cross multiply
    13,971.32x = 19,274.95 × 7,999.77
  4. Step 4: Simplify right side
    13,971.32x = 154,195,126.76
  5. Step 5: Solve for x
    x = 154,195,126.76/13,971.32
  6. Step 6: Final answer
    x = 11,036.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.