Home / 15,451.51-21,323.04-8,377.93

Finding the Fourth Proportional to 15,451.51, 21,323.04 and 8,377.93

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Solution

The fourth proportional to 15,451.51, 21,323.04 and 8,377.93 is: 11,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.51 : 21,323.04 = 8,377.93 : x
  2. Step 2: Convert to fraction form
    15,451.51/21,323.04 = 8,377.93/x
  3. Step 3: Cross multiply
    15,451.51x = 21,323.04 × 8,377.93
  4. Step 4: Simplify right side
    15,451.51x = 178,642,936.51
  5. Step 5: Solve for x
    x = 178,642,936.51/15,451.51
  6. Step 6: Final answer
    x = 11,561.52

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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.