Home / 13,402.23-18,495.12-7,434.45

Finding the Fourth Proportional to 13,402.23, 18,495.12 and 7,434.45

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Solution

The fourth proportional to 13,402.23, 18,495.12 and 7,434.45 is: 10,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.23 : 18,495.12 = 7,434.45 : x
  2. Step 2: Convert to fraction form
    13,402.23/18,495.12 = 7,434.45/x
  3. Step 3: Cross multiply
    13,402.23x = 18,495.12 × 7,434.45
  4. Step 4: Simplify right side
    13,402.23x = 137,500,952.41
  5. Step 5: Solve for x
    x = 137,500,952.41/13,402.23
  6. Step 6: Final answer
    x = 10,259.56

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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.