Home / 14,980.46-20,669.35-9,158.10

Finding the Fourth Proportional to 14,980.46, 20,669.35 and 9,158.10

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Solution

The fourth proportional to 14,980.46, 20,669.35 and 9,158.10 is: 12,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.46 : 20,669.35 = 9,158.10 : x
  2. Step 2: Convert to fraction form
    14,980.46/20,669.35 = 9,158.10/x
  3. Step 3: Cross multiply
    14,980.46x = 20,669.35 × 9,158.10
  4. Step 4: Simplify right side
    14,980.46x = 189,291,928.44
  5. Step 5: Solve for x
    x = 189,291,928.44/14,980.46
  6. Step 6: Final answer
    x = 12,635.92

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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.