Home / 14,217.61-19,621.29-7,929.99

Finding the Fourth Proportional to 14,217.61, 19,621.29 and 7,929.99

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Solution

The fourth proportional to 14,217.61, 19,621.29 and 7,929.99 is: 10,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.61 : 19,621.29 = 7,929.99 : x
  2. Step 2: Convert to fraction form
    14,217.61/19,621.29 = 7,929.99/x
  3. Step 3: Cross multiply
    14,217.61x = 19,621.29 × 7,929.99
  4. Step 4: Simplify right side
    14,217.61x = 155,596,633.49
  5. Step 5: Solve for x
    x = 155,596,633.49/14,217.61
  6. Step 6: Final answer
    x = 10,943.94

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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.