Home / 10,415.12-14,373.15-5,699.42

Finding the Fourth Proportional to 10,415.12, 14,373.15 and 5,699.42

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Solution

The fourth proportional to 10,415.12, 14,373.15 and 5,699.42 is: 7,865.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.12 : 14,373.15 = 5,699.42 : x
  2. Step 2: Convert to fraction form
    10,415.12/14,373.15 = 5,699.42/x
  3. Step 3: Cross multiply
    10,415.12x = 14,373.15 × 5,699.42
  4. Step 4: Simplify right side
    10,415.12x = 81,918,618.57
  5. Step 5: Solve for x
    x = 81,918,618.57/10,415.12
  6. Step 6: Final answer
    x = 7,865.36

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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.