Home / 10,430.57-14,389.37-9,236.78

Finding the Fourth Proportional to 10,430.57, 14,389.37 and 9,236.78

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Solution

The fourth proportional to 10,430.57, 14,389.37 and 9,236.78 is: 12,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.57 : 14,389.37 = 9,236.78 : x
  2. Step 2: Convert to fraction form
    10,430.57/14,389.37 = 9,236.78/x
  3. Step 3: Cross multiply
    10,430.57x = 14,389.37 × 9,236.78
  4. Step 4: Simplify right side
    10,430.57x = 132,911,326.90
  5. Step 5: Solve for x
    x = 132,911,326.90/10,430.57
  6. Step 6: Final answer
    x = 12,742.48

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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.