Home / 14,386.17-21,579.21-6,479.43

Finding the Fourth Proportional to 14,386.17, 21,579.21 and 6,479.43

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Solution

The fourth proportional to 14,386.17, 21,579.21 and 6,479.43 is: 9,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.17 : 21,579.21 = 6,479.43 : x
  2. Step 2: Convert to fraction form
    14,386.17/21,579.21 = 6,479.43/x
  3. Step 3: Cross multiply
    14,386.17x = 21,579.21 × 6,479.43
  4. Step 4: Simplify right side
    14,386.17x = 139,820,980.65
  5. Step 5: Solve for x
    x = 139,820,980.65/14,386.17
  6. Step 6: Final answer
    x = 9,719.12

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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.