Home / 12,605.29-18,918.86-12,576.13

Finding the Fourth Proportional to 12,605.29, 18,918.86 and 12,576.13

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Solution

The fourth proportional to 12,605.29, 18,918.86 and 12,576.13 is: 18,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.29 : 18,918.86 = 12,576.13 : x
  2. Step 2: Convert to fraction form
    12,605.29/18,918.86 = 12,576.13/x
  3. Step 3: Cross multiply
    12,605.29x = 18,918.86 × 12,576.13
  4. Step 4: Simplify right side
    12,605.29x = 237,925,885.34
  5. Step 5: Solve for x
    x = 237,925,885.34/12,605.29
  6. Step 6: Final answer
    x = 18,875.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.