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Finding the Fourth Proportional to 13,295.51, 18,347.93 and 7,327.40

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Solution

The fourth proportional to 13,295.51, 18,347.93 and 7,327.40 is: 10,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.51 : 18,347.93 = 7,327.40 : x
  2. Step 2: Convert to fraction form
    13,295.51/18,347.93 = 7,327.40/x
  3. Step 3: Cross multiply
    13,295.51x = 18,347.93 × 7,327.40
  4. Step 4: Simplify right side
    13,295.51x = 134,442,493.91
  5. Step 5: Solve for x
    x = 134,442,493.91/13,295.51
  6. Step 6: Final answer
    x = 10,111.87

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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.