Home / 10,207.79-14,076.39-9,612.51

Finding the Fourth Proportional to 10,207.79, 14,076.39 and 9,612.51

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Solution

The fourth proportional to 10,207.79, 14,076.39 and 9,612.51 is: 13,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.79 : 14,076.39 = 9,612.51 : x
  2. Step 2: Convert to fraction form
    10,207.79/14,076.39 = 9,612.51/x
  3. Step 3: Cross multiply
    10,207.79x = 14,076.39 × 9,612.51
  4. Step 4: Simplify right side
    10,207.79x = 135,309,368.83
  5. Step 5: Solve for x
    x = 135,309,368.83/10,207.79
  6. Step 6: Final answer
    x = 13,255.50

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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.