Home / 14,428.08-19,905.17-8,457.57

Finding the Fourth Proportional to 14,428.08, 19,905.17 and 8,457.57

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Solution

The fourth proportional to 14,428.08, 19,905.17 and 8,457.57 is: 11,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.08 : 19,905.17 = 8,457.57 : x
  2. Step 2: Convert to fraction form
    14,428.08/19,905.17 = 8,457.57/x
  3. Step 3: Cross multiply
    14,428.08x = 19,905.17 × 8,457.57
  4. Step 4: Simplify right side
    14,428.08x = 168,349,326.35
  5. Step 5: Solve for x
    x = 168,349,326.35/14,428.08
  6. Step 6: Final answer
    x = 11,668.17

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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.