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Finding the Fourth Proportional to 13,752.99, 18,979.34 and 7,465.37

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Solution

The fourth proportional to 13,752.99, 18,979.34 and 7,465.37 is: 10,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.99 : 18,979.34 = 7,465.37 : x
  2. Step 2: Convert to fraction form
    13,752.99/18,979.34 = 7,465.37/x
  3. Step 3: Cross multiply
    13,752.99x = 18,979.34 × 7,465.37
  4. Step 4: Simplify right side
    13,752.99x = 141,687,663.23
  5. Step 5: Solve for x
    x = 141,687,663.23/13,752.99
  6. Step 6: Final answer
    x = 10,302.32

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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.