Home / 13,807.91-19,056.93-7,838.35

Finding the Fourth Proportional to 13,807.91, 19,056.93 and 7,838.35

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Solution

The fourth proportional to 13,807.91, 19,056.93 and 7,838.35 is: 10,818.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.91 : 19,056.93 = 7,838.35 : x
  2. Step 2: Convert to fraction form
    13,807.91/19,056.93 = 7,838.35/x
  3. Step 3: Cross multiply
    13,807.91x = 19,056.93 × 7,838.35
  4. Step 4: Simplify right side
    13,807.91x = 149,374,887.27
  5. Step 5: Solve for x
    x = 149,374,887.27/13,807.91
  6. Step 6: Final answer
    x = 10,818.07

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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.