Home / 19,518.28-26,927.96-12,807.62

Finding the Fourth Proportional to 19,518.28, 26,927.96 and 12,807.62

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Solution

The fourth proportional to 19,518.28, 26,927.96 and 12,807.62 is: 17,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.28 : 26,927.96 = 12,807.62 : x
  2. Step 2: Convert to fraction form
    19,518.28/26,927.96 = 12,807.62/x
  3. Step 3: Cross multiply
    19,518.28x = 26,927.96 × 12,807.62
  4. Step 4: Simplify right side
    19,518.28x = 344,883,079.06
  5. Step 5: Solve for x
    x = 344,883,079.06/19,518.28
  6. Step 6: Final answer
    x = 17,669.75

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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.