Home / 13,353.46-18,427.61-7,385.02

Finding the Fourth Proportional to 13,353.46, 18,427.61 and 7,385.02

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Solution

The fourth proportional to 13,353.46, 18,427.61 and 7,385.02 is: 10,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.46 : 18,427.61 = 7,385.02 : x
  2. Step 2: Convert to fraction form
    13,353.46/18,427.61 = 7,385.02/x
  3. Step 3: Cross multiply
    13,353.46x = 18,427.61 × 7,385.02
  4. Step 4: Simplify right side
    13,353.46x = 136,088,139.34
  5. Step 5: Solve for x
    x = 136,088,139.34/13,353.46
  6. Step 6: Final answer
    x = 10,191.23

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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.