Home / 26,430.09-39,643.11-9,782.30

Finding the Fourth Proportional to 26,430.09, 39,643.11 and 9,782.30

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Solution

The fourth proportional to 26,430.09, 39,643.11 and 9,782.30 is: 14,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.09 : 39,643.11 = 9,782.30 : x
  2. Step 2: Convert to fraction form
    26,430.09/39,643.11 = 9,782.30/x
  3. Step 3: Cross multiply
    26,430.09x = 39,643.11 × 9,782.30
  4. Step 4: Simplify right side
    26,430.09x = 387,800,596.74
  5. Step 5: Solve for x
    x = 387,800,596.74/26,430.09
  6. Step 6: Final answer
    x = 14,672.69

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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.