Home / 12,948.75-19,428.57-9,657.36

Finding the Fourth Proportional to 12,948.75, 19,428.57 and 9,657.36

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Solution

The fourth proportional to 12,948.75, 19,428.57 and 9,657.36 is: 14,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.75 : 19,428.57 = 9,657.36 : x
  2. Step 2: Convert to fraction form
    12,948.75/19,428.57 = 9,657.36/x
  3. Step 3: Cross multiply
    12,948.75x = 19,428.57 × 9,657.36
  4. Step 4: Simplify right side
    12,948.75x = 187,628,694.78
  5. Step 5: Solve for x
    x = 187,628,694.78/12,948.75
  6. Step 6: Final answer
    x = 14,490.10

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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.