Home / 16,439.08-22,680.40-9,360.48

Finding the Fourth Proportional to 16,439.08, 22,680.40 and 9,360.48

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Solution

The fourth proportional to 16,439.08, 22,680.40 and 9,360.48 is: 12,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,439.08 : 22,680.40 = 9,360.48 : x
  2. Step 2: Convert to fraction form
    16,439.08/22,680.40 = 9,360.48/x
  3. Step 3: Cross multiply
    16,439.08x = 22,680.40 × 9,360.48
  4. Step 4: Simplify right side
    16,439.08x = 212,299,430.59
  5. Step 5: Solve for x
    x = 212,299,430.59/16,439.08
  6. Step 6: Final answer
    x = 12,914.31

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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.