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Finding the Fourth Proportional to 14,262.89, 19,681.08 and 7,888.62

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Solution

The fourth proportional to 14,262.89, 19,681.08 and 7,888.62 is: 10,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.89 : 19,681.08 = 7,888.62 : x
  2. Step 2: Convert to fraction form
    14,262.89/19,681.08 = 7,888.62/x
  3. Step 3: Cross multiply
    14,262.89x = 19,681.08 × 7,888.62
  4. Step 4: Simplify right side
    14,262.89x = 155,256,561.31
  5. Step 5: Solve for x
    x = 155,256,561.31/14,262.89
  6. Step 6: Final answer
    x = 10,885.35

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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.