Home / 10,383.84-14,319.96-6,840.88

Finding the Fourth Proportional to 10,383.84, 14,319.96 and 6,840.88

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Solution

The fourth proportional to 10,383.84, 14,319.96 and 6,840.88 is: 9,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.84 : 14,319.96 = 6,840.88 : x
  2. Step 2: Convert to fraction form
    10,383.84/14,319.96 = 6,840.88/x
  3. Step 3: Cross multiply
    10,383.84x = 14,319.96 × 6,840.88
  4. Step 4: Simplify right side
    10,383.84x = 97,961,127.96
  5. Step 5: Solve for x
    x = 97,961,127.96/10,383.84
  6. Step 6: Final answer
    x = 9,434.00

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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.