Home / 12,686.36-17,510.40-8,444.52

Finding the Fourth Proportional to 12,686.36, 17,510.40 and 8,444.52

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Solution

The fourth proportional to 12,686.36, 17,510.40 and 8,444.52 is: 11,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.36 : 17,510.40 = 8,444.52 : x
  2. Step 2: Convert to fraction form
    12,686.36/17,510.40 = 8,444.52/x
  3. Step 3: Cross multiply
    12,686.36x = 17,510.40 × 8,444.52
  4. Step 4: Simplify right side
    12,686.36x = 147,866,923.01
  5. Step 5: Solve for x
    x = 147,866,923.01/12,686.36
  6. Step 6: Final answer
    x = 11,655.59

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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.