Home / 13,565.36-18,720.84-7,595.84

Finding the Fourth Proportional to 13,565.36, 18,720.84 and 7,595.84

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Solution

The fourth proportional to 13,565.36, 18,720.84 and 7,595.84 is: 10,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.36 : 18,720.84 = 7,595.84 : x
  2. Step 2: Convert to fraction form
    13,565.36/18,720.84 = 7,595.84/x
  3. Step 3: Cross multiply
    13,565.36x = 18,720.84 × 7,595.84
  4. Step 4: Simplify right side
    13,565.36x = 142,200,505.31
  5. Step 5: Solve for x
    x = 142,200,505.31/13,565.36
  6. Step 6: Final answer
    x = 10,482.62

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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.