Home / 13,139.09-18,148.68-10,095.74

Finding the Fourth Proportional to 13,139.09, 18,148.68 and 10,095.74

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Solution

The fourth proportional to 13,139.09, 18,148.68 and 10,095.74 is: 13,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.09 : 18,148.68 = 10,095.74 : x
  2. Step 2: Convert to fraction form
    13,139.09/18,148.68 = 10,095.74/x
  3. Step 3: Cross multiply
    13,139.09x = 18,148.68 × 10,095.74
  4. Step 4: Simplify right side
    13,139.09x = 183,224,360.33
  5. Step 5: Solve for x
    x = 183,224,360.33/13,139.09
  6. Step 6: Final answer
    x = 13,944.99

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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.