Home / 13,360.86-18,437.55-7,392.30

Finding the Fourth Proportional to 13,360.86, 18,437.55 and 7,392.30

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Solution

The fourth proportional to 13,360.86, 18,437.55 and 7,392.30 is: 10,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.86 : 18,437.55 = 7,392.30 : x
  2. Step 2: Convert to fraction form
    13,360.86/18,437.55 = 7,392.30/x
  3. Step 3: Cross multiply
    13,360.86x = 18,437.55 × 7,392.30
  4. Step 4: Simplify right side
    13,360.86x = 136,295,900.87
  5. Step 5: Solve for x
    x = 136,295,900.87/13,360.86
  6. Step 6: Final answer
    x = 10,201.13

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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.