Home / 13,360.83-18,437.87-7,392.15

Finding the Fourth Proportional to 13,360.83, 18,437.87 and 7,392.15

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Solution

The fourth proportional to 13,360.83, 18,437.87 and 7,392.15 is: 10,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.83 : 18,437.87 = 7,392.15 : x
  2. Step 2: Convert to fraction form
    13,360.83/18,437.87 = 7,392.15/x
  3. Step 3: Cross multiply
    13,360.83x = 18,437.87 × 7,392.15
  4. Step 4: Simplify right side
    13,360.83x = 136,295,463.76
  5. Step 5: Solve for x
    x = 136,295,463.76/13,360.83
  6. Step 6: Final answer
    x = 10,201.12

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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.