Home / 15,008.42-20,711.05-9,706.25

Finding the Fourth Proportional to 15,008.42, 20,711.05 and 9,706.25

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Solution

The fourth proportional to 15,008.42, 20,711.05 and 9,706.25 is: 13,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.42 : 20,711.05 = 9,706.25 : x
  2. Step 2: Convert to fraction form
    15,008.42/20,711.05 = 9,706.25/x
  3. Step 3: Cross multiply
    15,008.42x = 20,711.05 × 9,706.25
  4. Step 4: Simplify right side
    15,008.42x = 201,026,656.57
  5. Step 5: Solve for x
    x = 201,026,656.57/15,008.42
  6. Step 6: Final answer
    x = 13,394.26

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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.