Home / 13,309.77-18,348.40-10,472.25

Finding the Fourth Proportional to 13,309.77, 18,348.40 and 10,472.25

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Solution

The fourth proportional to 13,309.77, 18,348.40 and 10,472.25 is: 14,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.77 : 18,348.40 = 10,472.25 : x
  2. Step 2: Convert to fraction form
    13,309.77/18,348.40 = 10,472.25/x
  3. Step 3: Cross multiply
    13,309.77x = 18,348.40 × 10,472.25
  4. Step 4: Simplify right side
    13,309.77x = 192,149,031.90
  5. Step 5: Solve for x
    x = 192,149,031.90/13,309.77
  6. Step 6: Final answer
    x = 14,436.69

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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.