Home / 15,484.59-21,377.60-10,194.78

Finding the Fourth Proportional to 15,484.59, 21,377.60 and 10,194.78

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Solution

The fourth proportional to 15,484.59, 21,377.60 and 10,194.78 is: 14,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.59 : 21,377.60 = 10,194.78 : x
  2. Step 2: Convert to fraction form
    15,484.59/21,377.60 = 10,194.78/x
  3. Step 3: Cross multiply
    15,484.59x = 21,377.60 × 10,194.78
  4. Step 4: Simplify right side
    15,484.59x = 217,939,956.89
  5. Step 5: Solve for x
    x = 217,939,956.89/15,484.59
  6. Step 6: Final answer
    x = 14,074.64

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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.