Home / 18,951.13-26,133.18-12,575.47

Finding the Fourth Proportional to 18,951.13, 26,133.18 and 12,575.47

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Solution

The fourth proportional to 18,951.13, 26,133.18 and 12,575.47 is: 17,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.13 : 26,133.18 = 12,575.47 : x
  2. Step 2: Convert to fraction form
    18,951.13/26,133.18 = 12,575.47/x
  3. Step 3: Cross multiply
    18,951.13x = 26,133.18 × 12,575.47
  4. Step 4: Simplify right side
    18,951.13x = 328,637,021.09
  5. Step 5: Solve for x
    x = 328,637,021.09/18,951.13
  6. Step 6: Final answer
    x = 17,341.29

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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.