Home / 14,723.84-20,320.74-8,436.24

Finding the Fourth Proportional to 14,723.84, 20,320.74 and 8,436.24

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Solution

The fourth proportional to 14,723.84, 20,320.74 and 8,436.24 is: 11,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.84 : 20,320.74 = 8,436.24 : x
  2. Step 2: Convert to fraction form
    14,723.84/20,320.74 = 8,436.24/x
  3. Step 3: Cross multiply
    14,723.84x = 20,320.74 × 8,436.24
  4. Step 4: Simplify right side
    14,723.84x = 171,430,639.62
  5. Step 5: Solve for x
    x = 171,430,639.62/14,723.84
  6. Step 6: Final answer
    x = 11,643.07

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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.