Home / 14,719.68-20,308.32-9,129.60

Finding the Fourth Proportional to 14,719.68, 20,308.32 and 9,129.60

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Solution

The fourth proportional to 14,719.68, 20,308.32 and 9,129.60 is: 12,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.68 : 20,308.32 = 9,129.60 : x
  2. Step 2: Convert to fraction form
    14,719.68/20,308.32 = 9,129.60/x
  3. Step 3: Cross multiply
    14,719.68x = 20,308.32 × 9,129.60
  4. Step 4: Simplify right side
    14,719.68x = 185,406,838.27
  5. Step 5: Solve for x
    x = 185,406,838.27/14,719.68
  6. Step 6: Final answer
    x = 12,595.85

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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.