Home / 13,382.60-18,460.55-10,539.50

Finding the Fourth Proportional to 13,382.60, 18,460.55 and 10,539.50

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Solution

The fourth proportional to 13,382.60, 18,460.55 and 10,539.50 is: 14,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.60 : 18,460.55 = 10,539.50 : x
  2. Step 2: Convert to fraction form
    13,382.60/18,460.55 = 10,539.50/x
  3. Step 3: Cross multiply
    13,382.60x = 18,460.55 × 10,539.50
  4. Step 4: Simplify right side
    13,382.60x = 194,564,914.03
  5. Step 5: Solve for x
    x = 194,564,914.03/13,382.60
  6. Step 6: Final answer
    x = 14,538.65

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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.