Home / 18,398.34-25,386.21-11,685.06

Finding the Fourth Proportional to 18,398.34, 25,386.21 and 11,685.06

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Solution

The fourth proportional to 18,398.34, 25,386.21 and 11,685.06 is: 16,123.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.34 : 25,386.21 = 11,685.06 : x
  2. Step 2: Convert to fraction form
    18,398.34/25,386.21 = 11,685.06/x
  3. Step 3: Cross multiply
    18,398.34x = 25,386.21 × 11,685.06
  4. Step 4: Simplify right side
    18,398.34x = 296,639,387.02
  5. Step 5: Solve for x
    x = 296,639,387.02/18,398.34
  6. Step 6: Final answer
    x = 16,123.16

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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.