Home / 10,956.48-15,119.10-6,479.88

Finding the Fourth Proportional to 10,956.48, 15,119.10 and 6,479.88

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Solution

The fourth proportional to 10,956.48, 15,119.10 and 6,479.88 is: 8,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.48 : 15,119.10 = 6,479.88 : x
  2. Step 2: Convert to fraction form
    10,956.48/15,119.10 = 6,479.88/x
  3. Step 3: Cross multiply
    10,956.48x = 15,119.10 × 6,479.88
  4. Step 4: Simplify right side
    10,956.48x = 97,969,953.71
  5. Step 5: Solve for x
    x = 97,969,953.71/10,956.48
  6. Step 6: Final answer
    x = 8,941.74

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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.