Home / 13,515.90-20,273.85-9,368.70

Finding the Fourth Proportional to 13,515.90, 20,273.85 and 9,368.70

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Solution

The fourth proportional to 13,515.90, 20,273.85 and 9,368.70 is: 14,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.90 : 20,273.85 = 9,368.70 : x
  2. Step 2: Convert to fraction form
    13,515.90/20,273.85 = 9,368.70/x
  3. Step 3: Cross multiply
    13,515.90x = 20,273.85 × 9,368.70
  4. Step 4: Simplify right side
    13,515.90x = 189,939,618.50
  5. Step 5: Solve for x
    x = 189,939,618.50/13,515.90
  6. Step 6: Final answer
    x = 14,053.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.