Home / 11,210.80-15,485.52-9,094.20

Finding the Fourth Proportional to 11,210.80, 15,485.52 and 9,094.20

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Solution

The fourth proportional to 11,210.80, 15,485.52 and 9,094.20 is: 12,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.80 : 15,485.52 = 9,094.20 : x
  2. Step 2: Convert to fraction form
    11,210.80/15,485.52 = 9,094.20/x
  3. Step 3: Cross multiply
    11,210.80x = 15,485.52 × 9,094.20
  4. Step 4: Simplify right side
    11,210.80x = 140,828,415.98
  5. Step 5: Solve for x
    x = 140,828,415.98/11,210.80
  6. Step 6: Final answer
    x = 12,561.85

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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.