Home / 14,421.95-19,919.96-10,436.75

Finding the Fourth Proportional to 14,421.95, 19,919.96 and 10,436.75

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Solution

The fourth proportional to 14,421.95, 19,919.96 and 10,436.75 is: 14,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.95 : 19,919.96 = 10,436.75 : x
  2. Step 2: Convert to fraction form
    14,421.95/19,919.96 = 10,436.75/x
  3. Step 3: Cross multiply
    14,421.95x = 19,919.96 × 10,436.75
  4. Step 4: Simplify right side
    14,421.95x = 207,899,490.75
  5. Step 5: Solve for x
    x = 207,899,490.75/14,421.95
  6. Step 6: Final answer
    x = 14,415.50

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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.