Home / 11,143.01-15,344.94-10,430.70

Finding the Fourth Proportional to 11,143.01, 15,344.94 and 10,430.70

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Solution

The fourth proportional to 11,143.01, 15,344.94 and 10,430.70 is: 14,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.01 : 15,344.94 = 10,430.70 : x
  2. Step 2: Convert to fraction form
    11,143.01/15,344.94 = 10,430.70/x
  3. Step 3: Cross multiply
    11,143.01x = 15,344.94 × 10,430.70
  4. Step 4: Simplify right side
    11,143.01x = 160,058,465.66
  5. Step 5: Solve for x
    x = 160,058,465.66/11,143.01
  6. Step 6: Final answer
    x = 14,364.03

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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.