Home / 19,189.55-26,479.77-10,690.81

Finding the Fourth Proportional to 19,189.55, 26,479.77 and 10,690.81

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Solution

The fourth proportional to 19,189.55, 26,479.77 and 10,690.81 is: 14,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.55 : 26,479.77 = 10,690.81 : x
  2. Step 2: Convert to fraction form
    19,189.55/26,479.77 = 10,690.81/x
  3. Step 3: Cross multiply
    19,189.55x = 26,479.77 × 10,690.81
  4. Step 4: Simplify right side
    19,189.55x = 283,090,189.91
  5. Step 5: Solve for x
    x = 283,090,189.91/19,189.55
  6. Step 6: Final answer
    x = 14,752.31

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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.