Home / 15,784.32-23,681.16-5,255.70

Finding the Fourth Proportional to 15,784.32, 23,681.16 and 5,255.70

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Solution

The fourth proportional to 15,784.32, 23,681.16 and 5,255.70 is: 7,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.32 : 23,681.16 = 5,255.70 : x
  2. Step 2: Convert to fraction form
    15,784.32/23,681.16 = 5,255.70/x
  3. Step 3: Cross multiply
    15,784.32x = 23,681.16 × 5,255.70
  4. Step 4: Simplify right side
    15,784.32x = 124,461,072.61
  5. Step 5: Solve for x
    x = 124,461,072.61/15,784.32
  6. Step 6: Final answer
    x = 7,885.11

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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.