Home / 13,794.72-19,030.80-8,487.60

Finding the Fourth Proportional to 13,794.72, 19,030.80 and 8,487.60

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Solution

The fourth proportional to 13,794.72, 19,030.80 and 8,487.60 is: 11,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.72 : 19,030.80 = 8,487.60 : x
  2. Step 2: Convert to fraction form
    13,794.72/19,030.80 = 8,487.60/x
  3. Step 3: Cross multiply
    13,794.72x = 19,030.80 × 8,487.60
  4. Step 4: Simplify right side
    13,794.72x = 161,525,818.08
  5. Step 5: Solve for x
    x = 161,525,818.08/13,794.72
  6. Step 6: Final answer
    x = 11,709.25

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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.