Home / 12,852.40-17,715.80-10,490.48

Finding the Fourth Proportional to 12,852.40, 17,715.80 and 10,490.48

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Solution

The fourth proportional to 12,852.40, 17,715.80 and 10,490.48 is: 14,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.40 : 17,715.80 = 10,490.48 : x
  2. Step 2: Convert to fraction form
    12,852.40/17,715.80 = 10,490.48/x
  3. Step 3: Cross multiply
    12,852.40x = 17,715.80 × 10,490.48
  4. Step 4: Simplify right side
    12,852.40x = 185,847,245.58
  5. Step 5: Solve for x
    x = 185,847,245.58/12,852.40
  6. Step 6: Final answer
    x = 14,460.12

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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.