Home / 13,867.86-19,138.23-7,580.64

Finding the Fourth Proportional to 13,867.86, 19,138.23 and 7,580.64

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Solution

The fourth proportional to 13,867.86, 19,138.23 and 7,580.64 is: 10,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.86 : 19,138.23 = 7,580.64 : x
  2. Step 2: Convert to fraction form
    13,867.86/19,138.23 = 7,580.64/x
  3. Step 3: Cross multiply
    13,867.86x = 19,138.23 × 7,580.64
  4. Step 4: Simplify right side
    13,867.86x = 145,080,031.87
  5. Step 5: Solve for x
    x = 145,080,031.87/13,867.86
  6. Step 6: Final answer
    x = 10,461.60

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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.