Home / 14,103.17-19,461.35-7,728.74

Finding the Fourth Proportional to 14,103.17, 19,461.35 and 7,728.74

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Solution

The fourth proportional to 14,103.17, 19,461.35 and 7,728.74 is: 10,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.17 : 19,461.35 = 7,728.74 : x
  2. Step 2: Convert to fraction form
    14,103.17/19,461.35 = 7,728.74/x
  3. Step 3: Cross multiply
    14,103.17x = 19,461.35 × 7,728.74
  4. Step 4: Simplify right side
    14,103.17x = 150,411,578.25
  5. Step 5: Solve for x
    x = 150,411,578.25/14,103.17
  6. Step 6: Final answer
    x = 10,665.09

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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.