Home / 18,818.88-25,970.64-10,436.16

Finding the Fourth Proportional to 18,818.88, 25,970.64 and 10,436.16

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Solution

The fourth proportional to 18,818.88, 25,970.64 and 10,436.16 is: 14,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.88 : 25,970.64 = 10,436.16 : x
  2. Step 2: Convert to fraction form
    18,818.88/25,970.64 = 10,436.16/x
  3. Step 3: Cross multiply
    18,818.88x = 25,970.64 × 10,436.16
  4. Step 4: Simplify right side
    18,818.88x = 271,033,754.34
  5. Step 5: Solve for x
    x = 271,033,754.34/18,818.88
  6. Step 6: Final answer
    x = 14,402.23

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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.