Home / 17,521.49-26,285.69-6,428.28

Finding the Fourth Proportional to 17,521.49, 26,285.69 and 6,428.28

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Solution

The fourth proportional to 17,521.49, 26,285.69 and 6,428.28 is: 9,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,521.49 : 26,285.69 = 6,428.28 : x
  2. Step 2: Convert to fraction form
    17,521.49/26,285.69 = 6,428.28/x
  3. Step 3: Cross multiply
    17,521.49x = 26,285.69 × 6,428.28
  4. Step 4: Simplify right side
    17,521.49x = 168,971,775.31
  5. Step 5: Solve for x
    x = 168,971,775.31/17,521.49
  6. Step 6: Final answer
    x = 9,643.69

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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.