Home / 13,322.60-18,385.28-7,354.30

Finding the Fourth Proportional to 13,322.60, 18,385.28 and 7,354.30

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Solution

The fourth proportional to 13,322.60, 18,385.28 and 7,354.30 is: 10,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.60 : 18,385.28 = 7,354.30 : x
  2. Step 2: Convert to fraction form
    13,322.60/18,385.28 = 7,354.30/x
  3. Step 3: Cross multiply
    13,322.60x = 18,385.28 × 7,354.30
  4. Step 4: Simplify right side
    13,322.60x = 135,210,864.70
  5. Step 5: Solve for x
    x = 135,210,864.70/13,322.60
  6. Step 6: Final answer
    x = 10,148.98

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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.