Home / 10,219.13-14,102.08-5,742.77

Finding the Fourth Proportional to 10,219.13, 14,102.08 and 5,742.77

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Solution

The fourth proportional to 10,219.13, 14,102.08 and 5,742.77 is: 7,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.13 : 14,102.08 = 5,742.77 : x
  2. Step 2: Convert to fraction form
    10,219.13/14,102.08 = 5,742.77/x
  3. Step 3: Cross multiply
    10,219.13x = 14,102.08 × 5,742.77
  4. Step 4: Simplify right side
    10,219.13x = 80,985,001.96
  5. Step 5: Solve for x
    x = 80,985,001.96/10,219.13
  6. Step 6: Final answer
    x = 7,924.84

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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.