Home / 18,360.90-25,338.60-10,402.92

Finding the Fourth Proportional to 18,360.90, 25,338.60 and 10,402.92

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Solution

The fourth proportional to 18,360.90, 25,338.60 and 10,402.92 is: 14,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.90 : 25,338.60 = 10,402.92 : x
  2. Step 2: Convert to fraction form
    18,360.90/25,338.60 = 10,402.92/x
  3. Step 3: Cross multiply
    18,360.90x = 25,338.60 × 10,402.92
  4. Step 4: Simplify right side
    18,360.90x = 263,595,428.71
  5. Step 5: Solve for x
    x = 263,595,428.71/18,360.90
  6. Step 6: Final answer
    x = 14,356.35

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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.