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Finding the Fourth Proportional to 15,295.80, 21,103.02 and 9,710.04

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Solution

The fourth proportional to 15,295.80, 21,103.02 and 9,710.04 is: 13,396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.80 : 21,103.02 = 9,710.04 : x
  2. Step 2: Convert to fraction form
    15,295.80/21,103.02 = 9,710.04/x
  3. Step 3: Cross multiply
    15,295.80x = 21,103.02 × 9,710.04
  4. Step 4: Simplify right side
    15,295.80x = 204,911,168.32
  5. Step 5: Solve for x
    x = 204,911,168.32/15,295.80
  6. Step 6: Final answer
    x = 13,396.56

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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.