Home / 10,378.68-14,322.54-5,663.04

Finding the Fourth Proportional to 10,378.68, 14,322.54 and 5,663.04

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Solution

The fourth proportional to 10,378.68, 14,322.54 and 5,663.04 is: 7,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.68 : 14,322.54 = 5,663.04 : x
  2. Step 2: Convert to fraction form
    10,378.68/14,322.54 = 5,663.04/x
  3. Step 3: Cross multiply
    10,378.68x = 14,322.54 × 5,663.04
  4. Step 4: Simplify right side
    10,378.68x = 81,109,116.92
  5. Step 5: Solve for x
    x = 81,109,116.92/10,378.68
  6. Step 6: Final answer
    x = 7,814.97

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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.