Home / 13,563.05-18,715.86-7,594.36

Finding the Fourth Proportional to 13,563.05, 18,715.86 and 7,594.36

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Solution

The fourth proportional to 13,563.05, 18,715.86 and 7,594.36 is: 10,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.05 : 18,715.86 = 7,594.36 : x
  2. Step 2: Convert to fraction form
    13,563.05/18,715.86 = 7,594.36/x
  3. Step 3: Cross multiply
    13,563.05x = 18,715.86 × 7,594.36
  4. Step 4: Simplify right side
    13,563.05x = 142,134,931.76
  5. Step 5: Solve for x
    x = 142,134,931.76/13,563.05
  6. Step 6: Final answer
    x = 10,479.57

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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.