Home / 10,419.16-14,378.85-5,703.44

Finding the Fourth Proportional to 10,419.16, 14,378.85 and 5,703.44

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Solution

The fourth proportional to 10,419.16, 14,378.85 and 5,703.44 is: 7,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.16 : 14,378.85 = 5,703.44 : x
  2. Step 2: Convert to fraction form
    10,419.16/14,378.85 = 5,703.44/x
  3. Step 3: Cross multiply
    10,419.16x = 14,378.85 × 5,703.44
  4. Step 4: Simplify right side
    10,419.16x = 82,008,908.24
  5. Step 5: Solve for x
    x = 82,008,908.24/10,419.16
  6. Step 6: Final answer
    x = 7,870.97

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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.