Home / 15,045.48-20,726.53-12,655.49

Finding the Fourth Proportional to 15,045.48, 20,726.53 and 12,655.49

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Solution

The fourth proportional to 15,045.48, 20,726.53 and 12,655.49 is: 17,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.48 : 20,726.53 = 12,655.49 : x
  2. Step 2: Convert to fraction form
    15,045.48/20,726.53 = 12,655.49/x
  3. Step 3: Cross multiply
    15,045.48x = 20,726.53 × 12,655.49
  4. Step 4: Simplify right side
    15,045.48x = 262,304,257.88
  5. Step 5: Solve for x
    x = 262,304,257.88/15,045.48
  6. Step 6: Final answer
    x = 17,434.09

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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.