Home / 13,158.60-19,716.30-10,955.40

Finding the Fourth Proportional to 13,158.60, 19,716.30 and 10,955.40

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Solution

The fourth proportional to 13,158.60, 19,716.30 and 10,955.40 is: 16,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.60 : 19,716.30 = 10,955.40 : x
  2. Step 2: Convert to fraction form
    13,158.60/19,716.30 = 10,955.40/x
  3. Step 3: Cross multiply
    13,158.60x = 19,716.30 × 10,955.40
  4. Step 4: Simplify right side
    13,158.60x = 215,999,953.02
  5. Step 5: Solve for x
    x = 215,999,953.02/13,158.60
  6. Step 6: Final answer
    x = 16,415.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.