Home / 18,875.13-26,061.21-13,222.42

Finding the Fourth Proportional to 18,875.13, 26,061.21 and 13,222.42

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Solution

The fourth proportional to 18,875.13, 26,061.21 and 13,222.42 is: 18,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.13 : 26,061.21 = 13,222.42 : x
  2. Step 2: Convert to fraction form
    18,875.13/26,061.21 = 13,222.42/x
  3. Step 3: Cross multiply
    18,875.13x = 26,061.21 × 13,222.42
  4. Step 4: Simplify right side
    18,875.13x = 344,592,264.33
  5. Step 5: Solve for x
    x = 344,592,264.33/18,875.13
  6. Step 6: Final answer
    x = 18,256.42

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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.