Home / 12,290.51-18,421.17-6,746.46

Finding the Fourth Proportional to 12,290.51, 18,421.17 and 6,746.46

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Solution

The fourth proportional to 12,290.51, 18,421.17 and 6,746.46 is: 10,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.51 : 18,421.17 = 6,746.46 : x
  2. Step 2: Convert to fraction form
    12,290.51/18,421.17 = 6,746.46/x
  3. Step 3: Cross multiply
    12,290.51x = 18,421.17 × 6,746.46
  4. Step 4: Simplify right side
    12,290.51x = 124,277,686.56
  5. Step 5: Solve for x
    x = 124,277,686.56/12,290.51
  6. Step 6: Final answer
    x = 10,111.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.