Home / 12,848.92-17,731.80-7,547.56

Finding the Fourth Proportional to 12,848.92, 17,731.80 and 7,547.56

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Solution

The fourth proportional to 12,848.92, 17,731.80 and 7,547.56 is: 10,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.92 : 17,731.80 = 7,547.56 : x
  2. Step 2: Convert to fraction form
    12,848.92/17,731.80 = 7,547.56/x
  3. Step 3: Cross multiply
    12,848.92x = 17,731.80 × 7,547.56
  4. Step 4: Simplify right side
    12,848.92x = 133,831,824.41
  5. Step 5: Solve for x
    x = 133,831,824.41/12,848.92
  6. Step 6: Final answer
    x = 10,415.80

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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.