Home / 13,565.30-18,720.99-7,596.74

Finding the Fourth Proportional to 13,565.30, 18,720.99 and 7,596.74

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Solution

The fourth proportional to 13,565.30, 18,720.99 and 7,596.74 is: 10,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.30 : 18,720.99 = 7,596.74 : x
  2. Step 2: Convert to fraction form
    13,565.30/18,720.99 = 7,596.74/x
  3. Step 3: Cross multiply
    13,565.30x = 18,720.99 × 7,596.74
  4. Step 4: Simplify right side
    13,565.30x = 142,218,493.57
  5. Step 5: Solve for x
    x = 142,218,493.57/13,565.30
  6. Step 6: Final answer
    x = 10,483.99

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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.