Home / 15,055.55-20,778.08-8,341.46

Finding the Fourth Proportional to 15,055.55, 20,778.08 and 8,341.46

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Solution

The fourth proportional to 15,055.55, 20,778.08 and 8,341.46 is: 11,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.55 : 20,778.08 = 8,341.46 : x
  2. Step 2: Convert to fraction form
    15,055.55/20,778.08 = 8,341.46/x
  3. Step 3: Cross multiply
    15,055.55x = 20,778.08 × 8,341.46
  4. Step 4: Simplify right side
    15,055.55x = 173,319,377.60
  5. Step 5: Solve for x
    x = 173,319,377.60/15,055.55
  6. Step 6: Final answer
    x = 11,512.00

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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.