Home / 10,984.32-16,461.12-5,126.40

Finding the Fourth Proportional to 10,984.32, 16,461.12 and 5,126.40

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Solution

The fourth proportional to 10,984.32, 16,461.12 and 5,126.40 is: 7,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,984.32 : 16,461.12 = 5,126.40 : x
  2. Step 2: Convert to fraction form
    10,984.32/16,461.12 = 5,126.40/x
  3. Step 3: Cross multiply
    10,984.32x = 16,461.12 × 5,126.40
  4. Step 4: Simplify right side
    10,984.32x = 84,386,285.57
  5. Step 5: Solve for x
    x = 84,386,285.57/10,984.32
  6. Step 6: Final answer
    x = 7,682.43

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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.