Home / 15,619.46-21,547.41-9,648.98

Finding the Fourth Proportional to 15,619.46, 21,547.41 and 9,648.98

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Solution

The fourth proportional to 15,619.46, 21,547.41 and 9,648.98 is: 13,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.46 : 21,547.41 = 9,648.98 : x
  2. Step 2: Convert to fraction form
    15,619.46/21,547.41 = 9,648.98/x
  3. Step 3: Cross multiply
    15,619.46x = 21,547.41 × 9,648.98
  4. Step 4: Simplify right side
    15,619.46x = 207,910,528.14
  5. Step 5: Solve for x
    x = 207,910,528.14/15,619.46
  6. Step 6: Final answer
    x = 13,310.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.