Home / 12,430.35-17,152.31-8,405.96

Finding the Fourth Proportional to 12,430.35, 17,152.31 and 8,405.96

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Solution

The fourth proportional to 12,430.35, 17,152.31 and 8,405.96 is: 11,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.35 : 17,152.31 = 8,405.96 : x
  2. Step 2: Convert to fraction form
    12,430.35/17,152.31 = 8,405.96/x
  3. Step 3: Cross multiply
    12,430.35x = 17,152.31 × 8,405.96
  4. Step 4: Simplify right side
    12,430.35x = 144,181,567.02
  5. Step 5: Solve for x
    x = 144,181,567.02/12,430.35
  6. Step 6: Final answer
    x = 11,599.16

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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.