Home / 13,331.10-18,400.59-8,292.32

Finding the Fourth Proportional to 13,331.10, 18,400.59 and 8,292.32

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Solution

The fourth proportional to 13,331.10, 18,400.59 and 8,292.32 is: 11,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.10 : 18,400.59 = 8,292.32 : x
  2. Step 2: Convert to fraction form
    13,331.10/18,400.59 = 8,292.32/x
  3. Step 3: Cross multiply
    13,331.10x = 18,400.59 × 8,292.32
  4. Step 4: Simplify right side
    13,331.10x = 152,583,580.47
  5. Step 5: Solve for x
    x = 152,583,580.47/13,331.10
  6. Step 6: Final answer
    x = 11,445.69

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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.