Home / 14,938.86-20,607.89-12,109.43

Finding the Fourth Proportional to 14,938.86, 20,607.89 and 12,109.43

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Solution

The fourth proportional to 14,938.86, 20,607.89 and 12,109.43 is: 16,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.86 : 20,607.89 = 12,109.43 : x
  2. Step 2: Convert to fraction form
    14,938.86/20,607.89 = 12,109.43/x
  3. Step 3: Cross multiply
    14,938.86x = 20,607.89 × 12,109.43
  4. Step 4: Simplify right side
    14,938.86x = 249,549,792.38
  5. Step 5: Solve for x
    x = 249,549,792.38/14,938.86
  6. Step 6: Final answer
    x = 16,704.74

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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.