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Finding the Fourth Proportional to 15,924, 21,975.15 and 8,852.10

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Solution

The fourth proportional to 15,924, 21,975.15 and 8,852.10 is: 12,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924 : 21,975.15 = 8,852.10 : x
  2. Step 2: Convert to fraction form
    15,924/21,975.15 = 8,852.10/x
  3. Step 3: Cross multiply
    15,924x = 21,975.15 × 8,852.10
  4. Step 4: Simplify right side
    15,924x = 194,526,225.32
  5. Step 5: Solve for x
    x = 194,526,225.32/15,924
  6. Step 6: Final answer
    x = 12,215.91

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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.