Home / 14,417.18-19,895.67-8,129.55

Finding the Fourth Proportional to 14,417.18, 19,895.67 and 8,129.55

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Solution

The fourth proportional to 14,417.18, 19,895.67 and 8,129.55 is: 11,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417.18 : 19,895.67 = 8,129.55 : x
  2. Step 2: Convert to fraction form
    14,417.18/19,895.67 = 8,129.55/x
  3. Step 3: Cross multiply
    14,417.18x = 19,895.67 × 8,129.55
  4. Step 4: Simplify right side
    14,417.18x = 161,742,844.05
  5. Step 5: Solve for x
    x = 161,742,844.05/14,417.18
  6. Step 6: Final answer
    x = 11,218.76

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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.