Home / 10,782.68-14,880.21-6,305.56

Finding the Fourth Proportional to 10,782.68, 14,880.21 and 6,305.56

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Solution

The fourth proportional to 10,782.68, 14,880.21 and 6,305.56 is: 8,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.68 : 14,880.21 = 6,305.56 : x
  2. Step 2: Convert to fraction form
    10,782.68/14,880.21 = 6,305.56/x
  3. Step 3: Cross multiply
    10,782.68x = 14,880.21 × 6,305.56
  4. Step 4: Simplify right side
    10,782.68x = 93,827,996.12
  5. Step 5: Solve for x
    x = 93,827,996.12/10,782.68
  6. Step 6: Final answer
    x = 8,701.74

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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.