Home / 14,612.40-20,157.88-9,160.48

Finding the Fourth Proportional to 14,612.40, 20,157.88 and 9,160.48

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Solution

The fourth proportional to 14,612.40, 20,157.88 and 9,160.48 is: 12,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.40 : 20,157.88 = 9,160.48 : x
  2. Step 2: Convert to fraction form
    14,612.40/20,157.88 = 9,160.48/x
  3. Step 3: Cross multiply
    14,612.40x = 20,157.88 × 9,160.48
  4. Step 4: Simplify right side
    14,612.40x = 184,655,856.58
  5. Step 5: Solve for x
    x = 184,655,856.58/14,612.40
  6. Step 6: Final answer
    x = 12,636.93

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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.