Home / 9,555.90-14,318.16-9,191.40

Finding the Fourth Proportional to 9,555.90, 14,318.16 and 9,191.40

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Solution

The fourth proportional to 9,555.90, 14,318.16 and 9,191.40 is: 13,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.90 : 14,318.16 = 9,191.40 : x
  2. Step 2: Convert to fraction form
    9,555.90/14,318.16 = 9,191.40/x
  3. Step 3: Cross multiply
    9,555.90x = 14,318.16 × 9,191.40
  4. Step 4: Simplify right side
    9,555.90x = 131,603,935.82
  5. Step 5: Solve for x
    x = 131,603,935.82/9,555.90
  6. Step 6: Final answer
    x = 13,772.01

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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.