Home / 14,405.24-19,881.05-8,439.19

Finding the Fourth Proportional to 14,405.24, 19,881.05 and 8,439.19

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Solution

The fourth proportional to 14,405.24, 19,881.05 and 8,439.19 is: 11,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.24 : 19,881.05 = 8,439.19 : x
  2. Step 2: Convert to fraction form
    14,405.24/19,881.05 = 8,439.19/x
  3. Step 3: Cross multiply
    14,405.24x = 19,881.05 × 8,439.19
  4. Step 4: Simplify right side
    14,405.24x = 167,779,866.45
  5. Step 5: Solve for x
    x = 167,779,866.45/14,405.24
  6. Step 6: Final answer
    x = 11,647.14

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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.