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Finding the Fourth Proportional to 12,875.71, 19,316.46 and 6,952.47

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Solution

The fourth proportional to 12,875.71, 19,316.46 and 6,952.47 is: 10,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.71 : 19,316.46 = 6,952.47 : x
  2. Step 2: Convert to fraction form
    12,875.71/19,316.46 = 6,952.47/x
  3. Step 3: Cross multiply
    12,875.71x = 19,316.46 × 6,952.47
  4. Step 4: Simplify right side
    12,875.71x = 134,297,108.66
  5. Step 5: Solve for x
    x = 134,297,108.66/12,875.71
  6. Step 6: Final answer
    x = 10,430.27

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1.5x scale

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.