Home / 18,637.19-27,955.77-12,776.03

Finding the Fourth Proportional to 18,637.19, 27,955.77 and 12,776.03

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Solution

The fourth proportional to 18,637.19, 27,955.77 and 12,776.03 is: 19,164.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.19 : 27,955.77 = 12,776.03 : x
  2. Step 2: Convert to fraction form
    18,637.19/27,955.77 = 12,776.03/x
  3. Step 3: Cross multiply
    18,637.19x = 27,955.77 × 12,776.03
  4. Step 4: Simplify right side
    18,637.19x = 357,163,616.41
  5. Step 5: Solve for x
    x = 357,163,616.41/18,637.19
  6. Step 6: Final answer
    x = 19,164.03

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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.