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Finding the Fourth Proportional to 14,304.68, 19,740.44 and 7,931.25

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Solution

The fourth proportional to 14,304.68, 19,740.44 and 7,931.25 is: 10,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.68 : 19,740.44 = 7,931.25 : x
  2. Step 2: Convert to fraction form
    14,304.68/19,740.44 = 7,931.25/x
  3. Step 3: Cross multiply
    14,304.68x = 19,740.44 × 7,931.25
  4. Step 4: Simplify right side
    14,304.68x = 156,566,384.58
  5. Step 5: Solve for x
    x = 156,566,384.58/14,304.68
  6. Step 6: Final answer
    x = 10,945.12

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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.