Home / 13,158.80-19,741.28-9,000.77

Finding the Fourth Proportional to 13,158.80, 19,741.28 and 9,000.77

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Solution

The fourth proportional to 13,158.80, 19,741.28 and 9,000.77 is: 13,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.80 : 19,741.28 = 9,000.77 : x
  2. Step 2: Convert to fraction form
    13,158.80/19,741.28 = 9,000.77/x
  3. Step 3: Cross multiply
    13,158.80x = 19,741.28 × 9,000.77
  4. Step 4: Simplify right side
    13,158.80x = 177,686,577.08
  5. Step 5: Solve for x
    x = 177,686,577.08/13,158.80
  6. Step 6: Final answer
    x = 13,503.25

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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.