Home / 12,973.40-19,460.10-8,307.80

Finding the Fourth Proportional to 12,973.40, 19,460.10 and 8,307.80

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Solution

The fourth proportional to 12,973.40, 19,460.10 and 8,307.80 is: 12,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.40 : 19,460.10 = 8,307.80 : x
  2. Step 2: Convert to fraction form
    12,973.40/19,460.10 = 8,307.80/x
  3. Step 3: Cross multiply
    12,973.40x = 19,460.10 × 8,307.80
  4. Step 4: Simplify right side
    12,973.40x = 161,670,618.78
  5. Step 5: Solve for x
    x = 161,670,618.78/12,973.40
  6. Step 6: Final answer
    x = 12,461.70

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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.