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Finding the Fourth Proportional to 12,677.68, 17,496.12 and 7,088.32

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Solution

The fourth proportional to 12,677.68, 17,496.12 and 7,088.32 is: 9,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.68 : 17,496.12 = 7,088.32 : x
  2. Step 2: Convert to fraction form
    12,677.68/17,496.12 = 7,088.32/x
  3. Step 3: Cross multiply
    12,677.68x = 17,496.12 × 7,088.32
  4. Step 4: Simplify right side
    12,677.68x = 124,018,097.32
  5. Step 5: Solve for x
    x = 124,018,097.32/12,677.68
  6. Step 6: Final answer
    x = 9,782.40

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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.