Home / 10,956.07-15,118.32-6,479.74

Finding the Fourth Proportional to 10,956.07, 15,118.32 and 6,479.74

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Solution

The fourth proportional to 10,956.07, 15,118.32 and 6,479.74 is: 8,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.07 : 15,118.32 = 6,479.74 : x
  2. Step 2: Convert to fraction form
    10,956.07/15,118.32 = 6,479.74/x
  3. Step 3: Cross multiply
    10,956.07x = 15,118.32 × 6,479.74
  4. Step 4: Simplify right side
    10,956.07x = 97,962,782.84
  5. Step 5: Solve for x
    x = 97,962,782.84/10,956.07
  6. Step 6: Final answer
    x = 8,941.42

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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.