Home / 12,329.48-18,498.87-7,402.56

Finding the Fourth Proportional to 12,329.48, 18,498.87 and 7,402.56

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Solution

The fourth proportional to 12,329.48, 18,498.87 and 7,402.56 is: 11,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.48 : 18,498.87 = 7,402.56 : x
  2. Step 2: Convert to fraction form
    12,329.48/18,498.87 = 7,402.56/x
  3. Step 3: Cross multiply
    12,329.48x = 18,498.87 × 7,402.56
  4. Step 4: Simplify right side
    12,329.48x = 136,938,925.74
  5. Step 5: Solve for x
    x = 136,938,925.74/12,329.48
  6. Step 6: Final answer
    x = 11,106.62

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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.