Home / 14,426.32-19,908.12-8,140.72

Finding the Fourth Proportional to 14,426.32, 19,908.12 and 8,140.72

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Solution

The fourth proportional to 14,426.32, 19,908.12 and 8,140.72 is: 11,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,426.32 : 19,908.12 = 8,140.72 : x
  2. Step 2: Convert to fraction form
    14,426.32/19,908.12 = 8,140.72/x
  3. Step 3: Cross multiply
    14,426.32x = 19,908.12 × 8,140.72
  4. Step 4: Simplify right side
    14,426.32x = 162,066,430.65
  5. Step 5: Solve for x
    x = 162,066,430.65/14,426.32
  6. Step 6: Final answer
    x = 11,234.08

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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.