Home / 17,638.29-26,448.12-7,772.90

Finding the Fourth Proportional to 17,638.29, 26,448.12 and 7,772.90

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Solution

The fourth proportional to 17,638.29, 26,448.12 and 7,772.90 is: 11,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.29 : 26,448.12 = 7,772.90 : x
  2. Step 2: Convert to fraction form
    17,638.29/26,448.12 = 7,772.90/x
  3. Step 3: Cross multiply
    17,638.29x = 26,448.12 × 7,772.90
  4. Step 4: Simplify right side
    17,638.29x = 205,578,459.71
  5. Step 5: Solve for x
    x = 205,578,459.71/17,638.29
  6. Step 6: Final answer
    x = 11,655.24

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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.