Home / 26,390.40-39,601.20-9,762.24

Finding the Fourth Proportional to 26,390.40, 39,601.20 and 9,762.24

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Solution

The fourth proportional to 26,390.40, 39,601.20 and 9,762.24 is: 14,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.40 : 39,601.20 = 9,762.24 : x
  2. Step 2: Convert to fraction form
    26,390.40/39,601.20 = 9,762.24/x
  3. Step 3: Cross multiply
    26,390.40x = 39,601.20 × 9,762.24
  4. Step 4: Simplify right side
    26,390.40x = 386,596,418.69
  5. Step 5: Solve for x
    x = 386,596,418.69/26,390.40
  6. Step 6: Final answer
    x = 14,649.13

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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.