Home / 10,079.64-15,117.66-5,384.88

Finding the Fourth Proportional to 10,079.64, 15,117.66 and 5,384.88

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Solution

The fourth proportional to 10,079.64, 15,117.66 and 5,384.88 is: 8,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.64 : 15,117.66 = 5,384.88 : x
  2. Step 2: Convert to fraction form
    10,079.64/15,117.66 = 5,384.88/x
  3. Step 3: Cross multiply
    10,079.64x = 15,117.66 × 5,384.88
  4. Step 4: Simplify right side
    10,079.64x = 81,406,784.98
  5. Step 5: Solve for x
    x = 81,406,784.98/10,079.64
  6. Step 6: Final answer
    x = 8,076.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.