Home / 13,567.83-18,725.82-9,315.36

Finding the Fourth Proportional to 13,567.83, 18,725.82 and 9,315.36

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Solution

The fourth proportional to 13,567.83, 18,725.82 and 9,315.36 is: 12,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.83 : 18,725.82 = 9,315.36 : x
  2. Step 2: Convert to fraction form
    13,567.83/18,725.82 = 9,315.36/x
  3. Step 3: Cross multiply
    13,567.83x = 18,725.82 × 9,315.36
  4. Step 4: Simplify right side
    13,567.83x = 174,437,754.60
  5. Step 5: Solve for x
    x = 174,437,754.60/13,567.83
  6. Step 6: Final answer
    x = 12,856.72

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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.