Home / 10,430.07-15,643.85-4,189.83

Finding the Fourth Proportional to 10,430.07, 15,643.85 and 4,189.83

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Solution

The fourth proportional to 10,430.07, 15,643.85 and 4,189.83 is: 6,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.07 : 15,643.85 = 4,189.83 : x
  2. Step 2: Convert to fraction form
    10,430.07/15,643.85 = 4,189.83/x
  3. Step 3: Cross multiply
    10,430.07x = 15,643.85 × 4,189.83
  4. Step 4: Simplify right side
    10,430.07x = 65,545,051.10
  5. Step 5: Solve for x
    x = 65,545,051.10/10,430.07
  6. Step 6: Final answer
    x = 6,284.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.