Home / 13,977.55-19,289.10-8,009.47

Finding the Fourth Proportional to 13,977.55, 19,289.10 and 8,009.47

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Solution

The fourth proportional to 13,977.55, 19,289.10 and 8,009.47 is: 11,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.55 : 19,289.10 = 8,009.47 : x
  2. Step 2: Convert to fraction form
    13,977.55/19,289.10 = 8,009.47/x
  3. Step 3: Cross multiply
    13,977.55x = 19,289.10 × 8,009.47
  4. Step 4: Simplify right side
    13,977.55x = 154,495,467.78
  5. Step 5: Solve for x
    x = 154,495,467.78/13,977.55
  6. Step 6: Final answer
    x = 11,053.12

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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.