Home / 18,490.14-25,516.35-10,106.70

Finding the Fourth Proportional to 18,490.14, 25,516.35 and 10,106.70

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Solution

The fourth proportional to 18,490.14, 25,516.35 and 10,106.70 is: 13,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.14 : 25,516.35 = 10,106.70 : x
  2. Step 2: Convert to fraction form
    18,490.14/25,516.35 = 10,106.70/x
  3. Step 3: Cross multiply
    18,490.14x = 25,516.35 × 10,106.70
  4. Step 4: Simplify right side
    18,490.14x = 257,886,094.55
  5. Step 5: Solve for x
    x = 257,886,094.55/18,490.14
  6. Step 6: Final answer
    x = 13,947.22

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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.