Home / 15,283.40-21,091.08-8,569.03

Finding the Fourth Proportional to 15,283.40, 21,091.08 and 8,569.03

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Solution

The fourth proportional to 15,283.40, 21,091.08 and 8,569.03 is: 11,825.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.40 : 21,091.08 = 8,569.03 : x
  2. Step 2: Convert to fraction form
    15,283.40/21,091.08 = 8,569.03/x
  3. Step 3: Cross multiply
    15,283.40x = 21,091.08 × 8,569.03
  4. Step 4: Simplify right side
    15,283.40x = 180,730,097.25
  5. Step 5: Solve for x
    x = 180,730,097.25/15,283.40
  6. Step 6: Final answer
    x = 11,825.25

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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.