Home / 12,852.48-17,737.98-7,547.78

Finding the Fourth Proportional to 12,852.48, 17,737.98 and 7,547.78

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Solution

The fourth proportional to 12,852.48, 17,737.98 and 7,547.78 is: 10,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.48 : 17,737.98 = 7,547.78 : x
  2. Step 2: Convert to fraction form
    12,852.48/17,737.98 = 7,547.78/x
  3. Step 3: Cross multiply
    12,852.48x = 17,737.98 × 7,547.78
  4. Step 4: Simplify right side
    12,852.48x = 133,882,370.68
  5. Step 5: Solve for x
    x = 133,882,370.68/12,852.48
  6. Step 6: Final answer
    x = 10,416.85

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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.