Home / 14,721.51-20,317.74-8,433.90

Finding the Fourth Proportional to 14,721.51, 20,317.74 and 8,433.90

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Solution

The fourth proportional to 14,721.51, 20,317.74 and 8,433.90 is: 11,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.51 : 20,317.74 = 8,433.90 : x
  2. Step 2: Convert to fraction form
    14,721.51/20,317.74 = 8,433.90/x
  3. Step 3: Cross multiply
    14,721.51x = 20,317.74 × 8,433.90
  4. Step 4: Simplify right side
    14,721.51x = 171,357,787.39
  5. Step 5: Solve for x
    x = 171,357,787.39/14,721.51
  6. Step 6: Final answer
    x = 11,639.96

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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.