Home / 15,284.04-21,091.70-8,569.64

Finding the Fourth Proportional to 15,284.04, 21,091.70 and 8,569.64

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Solution

The fourth proportional to 15,284.04, 21,091.70 and 8,569.64 is: 11,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.04 : 21,091.70 = 8,569.64 : x
  2. Step 2: Convert to fraction form
    15,284.04/21,091.70 = 8,569.64/x
  3. Step 3: Cross multiply
    15,284.04x = 21,091.70 × 8,569.64
  4. Step 4: Simplify right side
    15,284.04x = 180,748,389.69
  5. Step 5: Solve for x
    x = 180,748,389.69/15,284.04
  6. Step 6: Final answer
    x = 11,825.96

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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.