Home / 15,885.93-21,925.44-9,170.63

Finding the Fourth Proportional to 15,885.93, 21,925.44 and 9,170.63

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Solution

The fourth proportional to 15,885.93, 21,925.44 and 9,170.63 is: 12,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.93 : 21,925.44 = 9,170.63 : x
  2. Step 2: Convert to fraction form
    15,885.93/21,925.44 = 9,170.63/x
  3. Step 3: Cross multiply
    15,885.93x = 21,925.44 × 9,170.63
  4. Step 4: Simplify right side
    15,885.93x = 201,070,097.83
  5. Step 5: Solve for x
    x = 201,070,097.83/15,885.93
  6. Step 6: Final answer
    x = 12,657.12

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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.