Home / 19,905.08-27,477.63-13,178.84

Finding the Fourth Proportional to 19,905.08, 27,477.63 and 13,178.84

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Solution

The fourth proportional to 19,905.08, 27,477.63 and 13,178.84 is: 18,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.08 : 27,477.63 = 13,178.84 : x
  2. Step 2: Convert to fraction form
    19,905.08/27,477.63 = 13,178.84/x
  3. Step 3: Cross multiply
    19,905.08x = 27,477.63 × 13,178.84
  4. Step 4: Simplify right side
    19,905.08x = 362,123,151.96
  5. Step 5: Solve for x
    x = 362,123,151.96/19,905.08
  6. Step 6: Final answer
    x = 18,192.50

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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.