Home / 14,298.16-21,430.66-8,459.68

Finding the Fourth Proportional to 14,298.16, 21,430.66 and 8,459.68

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Solution

The fourth proportional to 14,298.16, 21,430.66 and 8,459.68 is: 12,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.16 : 21,430.66 = 8,459.68 : x
  2. Step 2: Convert to fraction form
    14,298.16/21,430.66 = 8,459.68/x
  3. Step 3: Cross multiply
    14,298.16x = 21,430.66 × 8,459.68
  4. Step 4: Simplify right side
    14,298.16x = 181,296,525.79
  5. Step 5: Solve for x
    x = 181,296,525.79/14,298.16
  6. Step 6: Final answer
    x = 12,679.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.