Home / 12,966.18-19,412.55-10,078.26

Finding the Fourth Proportional to 12,966.18, 19,412.55 and 10,078.26

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Solution

The fourth proportional to 12,966.18, 19,412.55 and 10,078.26 is: 15,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.18 : 19,412.55 = 10,078.26 : x
  2. Step 2: Convert to fraction form
    12,966.18/19,412.55 = 10,078.26/x
  3. Step 3: Cross multiply
    12,966.18x = 19,412.55 × 10,078.26
  4. Step 4: Simplify right side
    12,966.18x = 195,644,726.16
  5. Step 5: Solve for x
    x = 195,644,726.16/12,966.18
  6. Step 6: Final answer
    x = 15,088.85

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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.