Home / 10,903.20-15,047.04-6,187.20

Finding the Fourth Proportional to 10,903.20, 15,047.04 and 6,187.20

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Solution

The fourth proportional to 10,903.20, 15,047.04 and 6,187.20 is: 8,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.20 : 15,047.04 = 6,187.20 : x
  2. Step 2: Convert to fraction form
    10,903.20/15,047.04 = 6,187.20/x
  3. Step 3: Cross multiply
    10,903.20x = 15,047.04 × 6,187.20
  4. Step 4: Simplify right side
    10,903.20x = 93,099,045.89
  5. Step 5: Solve for x
    x = 93,099,045.89/10,903.20
  6. Step 6: Final answer
    x = 8,538.69

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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.