Home / 18,995.67-26,210.66-11,439.99

Finding the Fourth Proportional to 18,995.67, 26,210.66 and 11,439.99

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Solution

The fourth proportional to 18,995.67, 26,210.66 and 11,439.99 is: 15,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.67 : 26,210.66 = 11,439.99 : x
  2. Step 2: Convert to fraction form
    18,995.67/26,210.66 = 11,439.99/x
  3. Step 3: Cross multiply
    18,995.67x = 26,210.66 × 11,439.99
  4. Step 4: Simplify right side
    18,995.67x = 299,849,631.09
  5. Step 5: Solve for x
    x = 299,849,631.09/18,995.67
  6. Step 6: Final answer
    x = 15,785.16

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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.