Home / 11,430.16-17,119.28-10,276.72

Finding the Fourth Proportional to 11,430.16, 17,119.28 and 10,276.72

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Solution

The fourth proportional to 11,430.16, 17,119.28 and 10,276.72 is: 15,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.16 : 17,119.28 = 10,276.72 : x
  2. Step 2: Convert to fraction form
    11,430.16/17,119.28 = 10,276.72/x
  3. Step 3: Cross multiply
    11,430.16x = 17,119.28 × 10,276.72
  4. Step 4: Simplify right side
    11,430.16x = 175,930,047.16
  5. Step 5: Solve for x
    x = 175,930,047.16/11,430.16
  6. Step 6: Final answer
    x = 15,391.74

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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.