Home / 14,631.66-20,191.64-7,917.32

Finding the Fourth Proportional to 14,631.66, 20,191.64 and 7,917.32

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Solution

The fourth proportional to 14,631.66, 20,191.64 and 7,917.32 is: 10,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.66 : 20,191.64 = 7,917.32 : x
  2. Step 2: Convert to fraction form
    14,631.66/20,191.64 = 7,917.32/x
  3. Step 3: Cross multiply
    14,631.66x = 20,191.64 × 7,917.32
  4. Step 4: Simplify right side
    14,631.66x = 159,863,686.10
  5. Step 5: Solve for x
    x = 159,863,686.10/14,631.66
  6. Step 6: Final answer
    x = 10,925.87

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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.