Home / 13,420.99-20,124.73-4,653.55

Finding the Fourth Proportional to 13,420.99, 20,124.73 and 4,653.55

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Solution

The fourth proportional to 13,420.99, 20,124.73 and 4,653.55 is: 6,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.99 : 20,124.73 = 4,653.55 : x
  2. Step 2: Convert to fraction form
    13,420.99/20,124.73 = 4,653.55/x
  3. Step 3: Cross multiply
    13,420.99x = 20,124.73 × 4,653.55
  4. Step 4: Simplify right side
    13,420.99x = 93,651,437.29
  5. Step 5: Solve for x
    x = 93,651,437.29/13,420.99
  6. Step 6: Final answer
    x = 6,977.98

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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.