Home / 10,423.12-14,383.80-5,707.12

Finding the Fourth Proportional to 10,423.12, 14,383.80 and 5,707.12

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Solution

The fourth proportional to 10,423.12, 14,383.80 and 5,707.12 is: 7,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.12 : 14,383.80 = 5,707.12 : x
  2. Step 2: Convert to fraction form
    10,423.12/14,383.80 = 5,707.12/x
  3. Step 3: Cross multiply
    10,423.12x = 14,383.80 × 5,707.12
  4. Step 4: Simplify right side
    10,423.12x = 82,090,072.66
  5. Step 5: Solve for x
    x = 82,090,072.66/10,423.12
  6. Step 6: Final answer
    x = 7,875.77

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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.