Home / 14,699.18-20,291.10-9,392.78

Finding the Fourth Proportional to 14,699.18, 20,291.10 and 9,392.78

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Solution

The fourth proportional to 14,699.18, 20,291.10 and 9,392.78 is: 12,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.18 : 20,291.10 = 9,392.78 : x
  2. Step 2: Convert to fraction form
    14,699.18/20,291.10 = 9,392.78/x
  3. Step 3: Cross multiply
    14,699.18x = 20,291.10 × 9,392.78
  4. Step 4: Simplify right side
    14,699.18x = 190,589,838.26
  5. Step 5: Solve for x
    x = 190,589,838.26/14,699.18
  6. Step 6: Final answer
    x = 12,966.02

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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.