Home / 12,637.80-17,437.86-10,866.60

Finding the Fourth Proportional to 12,637.80, 17,437.86 and 10,866.60

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Solution

The fourth proportional to 12,637.80, 17,437.86 and 10,866.60 is: 14,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.80 : 17,437.86 = 10,866.60 : x
  2. Step 2: Convert to fraction form
    12,637.80/17,437.86 = 10,866.60/x
  3. Step 3: Cross multiply
    12,637.80x = 17,437.86 × 10,866.60
  4. Step 4: Simplify right side
    12,637.80x = 189,490,249.48
  5. Step 5: Solve for x
    x = 189,490,249.48/12,637.80
  6. Step 6: Final answer
    x = 14,993.93

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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.