Home / 12,916.40-17,822.45-7,612.27

Finding the Fourth Proportional to 12,916.40, 17,822.45 and 7,612.27

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Solution

The fourth proportional to 12,916.40, 17,822.45 and 7,612.27 is: 10,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.40 : 17,822.45 = 7,612.27 : x
  2. Step 2: Convert to fraction form
    12,916.40/17,822.45 = 7,612.27/x
  3. Step 3: Cross multiply
    12,916.40x = 17,822.45 × 7,612.27
  4. Step 4: Simplify right side
    12,916.40x = 135,669,174.29
  5. Step 5: Solve for x
    x = 135,669,174.29/12,916.40
  6. Step 6: Final answer
    x = 10,503.64

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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.