Home / 9,518.90-14,280.75-7,686.66

Finding the Fourth Proportional to 9,518.90, 14,280.75 and 7,686.66

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Solution

The fourth proportional to 9,518.90, 14,280.75 and 7,686.66 is: 11,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.90 : 14,280.75 = 7,686.66 : x
  2. Step 2: Convert to fraction form
    9,518.90/14,280.75 = 7,686.66/x
  3. Step 3: Cross multiply
    9,518.90x = 14,280.75 × 7,686.66
  4. Step 4: Simplify right side
    9,518.90x = 109,771,269.80
  5. Step 5: Solve for x
    x = 109,771,269.80/9,518.90
  6. Step 6: Final answer
    x = 11,531.93

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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.