Home / 13,385.34-18,471.24-7,417.26

Finding the Fourth Proportional to 13,385.34, 18,471.24 and 7,417.26

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Solution

The fourth proportional to 13,385.34, 18,471.24 and 7,417.26 is: 10,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.34 : 18,471.24 = 7,417.26 : x
  2. Step 2: Convert to fraction form
    13,385.34/18,471.24 = 7,417.26/x
  3. Step 3: Cross multiply
    13,385.34x = 18,471.24 × 7,417.26
  4. Step 4: Simplify right side
    13,385.34x = 137,005,989.60
  5. Step 5: Solve for x
    x = 137,005,989.60/13,385.34
  6. Step 6: Final answer
    x = 10,235.53

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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.