Home / 14,985.07-20,686.40-8,696.23

Finding the Fourth Proportional to 14,985.07, 20,686.40 and 8,696.23

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Solution

The fourth proportional to 14,985.07, 20,686.40 and 8,696.23 is: 12,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.07 : 20,686.40 = 8,696.23 : x
  2. Step 2: Convert to fraction form
    14,985.07/20,686.40 = 8,696.23/x
  3. Step 3: Cross multiply
    14,985.07x = 20,686.40 × 8,696.23
  4. Step 4: Simplify right side
    14,985.07x = 179,893,648.79
  5. Step 5: Solve for x
    x = 179,893,648.79/14,985.07
  6. Step 6: Final answer
    x = 12,004.86

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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.