Home / 13,359.63-18,434.69-7,390.48

Finding the Fourth Proportional to 13,359.63, 18,434.69 and 7,390.48

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Solution

The fourth proportional to 13,359.63, 18,434.69 and 7,390.48 is: 10,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.63 : 18,434.69 = 7,390.48 : x
  2. Step 2: Convert to fraction form
    13,359.63/18,434.69 = 7,390.48/x
  3. Step 3: Cross multiply
    13,359.63x = 18,434.69 × 7,390.48
  4. Step 4: Simplify right side
    13,359.63x = 136,241,207.75
  5. Step 5: Solve for x
    x = 136,241,207.75/13,359.63
  6. Step 6: Final answer
    x = 10,197.98

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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.