Home / 15,416.32-21,274.59-8,342.74

Finding the Fourth Proportional to 15,416.32, 21,274.59 and 8,342.74

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Solution

The fourth proportional to 15,416.32, 21,274.59 and 8,342.74 is: 11,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.32 : 21,274.59 = 8,342.74 : x
  2. Step 2: Convert to fraction form
    15,416.32/21,274.59 = 8,342.74/x
  3. Step 3: Cross multiply
    15,416.32x = 21,274.59 × 8,342.74
  4. Step 4: Simplify right side
    15,416.32x = 177,488,368.28
  5. Step 5: Solve for x
    x = 177,488,368.28/15,416.32
  6. Step 6: Final answer
    x = 11,513.02

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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.