Home / 14,117.95-21,177.09-4,257.31

Finding the Fourth Proportional to 14,117.95, 21,177.09 and 4,257.31

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Solution

The fourth proportional to 14,117.95, 21,177.09 and 4,257.31 is: 6,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.95 : 21,177.09 = 4,257.31 : x
  2. Step 2: Convert to fraction form
    14,117.95/21,177.09 = 4,257.31/x
  3. Step 3: Cross multiply
    14,117.95x = 21,177.09 × 4,257.31
  4. Step 4: Simplify right side
    14,117.95x = 90,157,447.53
  5. Step 5: Solve for x
    x = 90,157,447.53/14,117.95
  6. Step 6: Final answer
    x = 6,386.02

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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.