Home / 26,435.13-39,623.99-12,386.40

Finding the Fourth Proportional to 26,435.13, 39,623.99 and 12,386.40

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Solution

The fourth proportional to 26,435.13, 39,623.99 and 12,386.40 is: 18,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,435.13 : 39,623.99 = 12,386.40 : x
  2. Step 2: Convert to fraction form
    26,435.13/39,623.99 = 12,386.40/x
  3. Step 3: Cross multiply
    26,435.13x = 39,623.99 × 12,386.40
  4. Step 4: Simplify right side
    26,435.13x = 490,798,527.80
  5. Step 5: Solve for x
    x = 490,798,527.80/26,435.13
  6. Step 6: Final answer
    x = 18,566.15

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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.