Home / 13,088.40-19,635.86-4,772.96

Finding the Fourth Proportional to 13,088.40, 19,635.86 and 4,772.96

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Solution

The fourth proportional to 13,088.40, 19,635.86 and 4,772.96 is: 7,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.40 : 19,635.86 = 4,772.96 : x
  2. Step 2: Convert to fraction form
    13,088.40/19,635.86 = 4,772.96/x
  3. Step 3: Cross multiply
    13,088.40x = 19,635.86 × 4,772.96
  4. Step 4: Simplify right side
    13,088.40x = 93,721,174.35
  5. Step 5: Solve for x
    x = 93,721,174.35/13,088.40
  6. Step 6: Final answer
    x = 7,160.63

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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.