Home / 19,189.51-26,479.47-10,689.99

Finding the Fourth Proportional to 19,189.51, 26,479.47 and 10,689.99

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Solution

The fourth proportional to 19,189.51, 26,479.47 and 10,689.99 is: 14,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.51 : 26,479.47 = 10,689.99 : x
  2. Step 2: Convert to fraction form
    19,189.51/26,479.47 = 10,689.99/x
  3. Step 3: Cross multiply
    19,189.51x = 26,479.47 × 10,689.99
  4. Step 4: Simplify right side
    19,189.51x = 283,065,269.51
  5. Step 5: Solve for x
    x = 283,065,269.51/19,189.51
  6. Step 6: Final answer
    x = 14,751.04

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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.