Home / 12,152.04-18,186.90-7,475.01

Finding the Fourth Proportional to 12,152.04, 18,186.90 and 7,475.01

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Solution

The fourth proportional to 12,152.04, 18,186.90 and 7,475.01 is: 11,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.04 : 18,186.90 = 7,475.01 : x
  2. Step 2: Convert to fraction form
    12,152.04/18,186.90 = 7,475.01/x
  3. Step 3: Cross multiply
    12,152.04x = 18,186.90 × 7,475.01
  4. Step 4: Simplify right side
    12,152.04x = 135,947,259.37
  5. Step 5: Solve for x
    x = 135,947,259.37/12,152.04
  6. Step 6: Final answer
    x = 11,187.20

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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.