Home / 9,782.30-14,673.45-8,140.70

Finding the Fourth Proportional to 9,782.30, 14,673.45 and 8,140.70

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Solution

The fourth proportional to 9,782.30, 14,673.45 and 8,140.70 is: 12,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.30 : 14,673.45 = 8,140.70 : x
  2. Step 2: Convert to fraction form
    9,782.30/14,673.45 = 8,140.70/x
  3. Step 3: Cross multiply
    9,782.30x = 14,673.45 × 8,140.70
  4. Step 4: Simplify right side
    9,782.30x = 119,452,154.42
  5. Step 5: Solve for x
    x = 119,452,154.42/9,782.30
  6. Step 6: Final answer
    x = 12,211.05

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Double scale
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Similar ratio
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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.