Home / 13,873.24-19,139.56-8,558.80

Finding the Fourth Proportional to 13,873.24, 19,139.56 and 8,558.80

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Solution

The fourth proportional to 13,873.24, 19,139.56 and 8,558.80 is: 11,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.24 : 19,139.56 = 8,558.80 : x
  2. Step 2: Convert to fraction form
    13,873.24/19,139.56 = 8,558.80/x
  3. Step 3: Cross multiply
    13,873.24x = 19,139.56 × 8,558.80
  4. Step 4: Simplify right side
    13,873.24x = 163,811,666.13
  5. Step 5: Solve for x
    x = 163,811,666.13/13,873.24
  6. Step 6: Final answer
    x = 11,807.74

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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.