Home / 13,795.96-19,038.86-7,827.88

Finding the Fourth Proportional to 13,795.96, 19,038.86 and 7,827.88

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Solution

The fourth proportional to 13,795.96, 19,038.86 and 7,827.88 is: 10,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.96 : 19,038.86 = 7,827.88 : x
  2. Step 2: Convert to fraction form
    13,795.96/19,038.86 = 7,827.88/x
  3. Step 3: Cross multiply
    13,795.96x = 19,038.86 × 7,827.88
  4. Step 4: Simplify right side
    13,795.96x = 149,033,911.42
  5. Step 5: Solve for x
    x = 149,033,911.42/13,795.96
  6. Step 6: Final answer
    x = 10,802.72

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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.