Home / 14,117.46-21,178.47-4,758.31

Finding the Fourth Proportional to 14,117.46, 21,178.47 and 4,758.31

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Solution

The fourth proportional to 14,117.46, 21,178.47 and 4,758.31 is: 7,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.46 : 21,178.47 = 4,758.31 : x
  2. Step 2: Convert to fraction form
    14,117.46/21,178.47 = 4,758.31/x
  3. Step 3: Cross multiply
    14,117.46x = 21,178.47 × 4,758.31
  4. Step 4: Simplify right side
    14,117.46x = 100,773,725.59
  5. Step 5: Solve for x
    x = 100,773,725.59/14,117.46
  6. Step 6: Final answer
    x = 7,138.23

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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.