Home / 14,083.95-19,435.32-8,421.84

Finding the Fourth Proportional to 14,083.95, 19,435.32 and 8,421.84

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Solution

The fourth proportional to 14,083.95, 19,435.32 and 8,421.84 is: 11,621.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.95 : 19,435.32 = 8,421.84 : x
  2. Step 2: Convert to fraction form
    14,083.95/19,435.32 = 8,421.84/x
  3. Step 3: Cross multiply
    14,083.95x = 19,435.32 × 8,421.84
  4. Step 4: Simplify right side
    14,083.95x = 163,681,155.39
  5. Step 5: Solve for x
    x = 163,681,155.39/14,083.95
  6. Step 6: Final answer
    x = 11,621.82

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1.5x scale

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.