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Finding the Fourth Proportional to 15,927.16, 23,859.20 and 10,917.20

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Solution

The fourth proportional to 15,927.16, 23,859.20 and 10,917.20 is: 16,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.16 : 23,859.20 = 10,917.20 : x
  2. Step 2: Convert to fraction form
    15,927.16/23,859.20 = 10,917.20/x
  3. Step 3: Cross multiply
    15,927.16x = 23,859.20 × 10,917.20
  4. Step 4: Simplify right side
    15,927.16x = 260,475,658.24
  5. Step 5: Solve for x
    x = 260,475,658.24/15,927.16
  6. Step 6: Final answer
    x = 16,354.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.