Home / 14,077.90-21,117.31-6,678.55

Finding the Fourth Proportional to 14,077.90, 21,117.31 and 6,678.55

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Solution

The fourth proportional to 14,077.90, 21,117.31 and 6,678.55 is: 10,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.90 : 21,117.31 = 6,678.55 : x
  2. Step 2: Convert to fraction form
    14,077.90/21,117.31 = 6,678.55/x
  3. Step 3: Cross multiply
    14,077.90x = 21,117.31 × 6,678.55
  4. Step 4: Simplify right side
    14,077.90x = 141,033,020.40
  5. Step 5: Solve for x
    x = 141,033,020.40/14,077.90
  6. Step 6: Final answer
    x = 10,018.04

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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.