Home / 12,473.40-17,219.46-9,779.88

Finding the Fourth Proportional to 12,473.40, 17,219.46 and 9,779.88

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Solution

The fourth proportional to 12,473.40, 17,219.46 and 9,779.88 is: 13,501.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.40 : 17,219.46 = 9,779.88 : x
  2. Step 2: Convert to fraction form
    12,473.40/17,219.46 = 9,779.88/x
  3. Step 3: Cross multiply
    12,473.40x = 17,219.46 × 9,779.88
  4. Step 4: Simplify right side
    12,473.40x = 168,404,252.46
  5. Step 5: Solve for x
    x = 168,404,252.46/12,473.40
  6. Step 6: Final answer
    x = 13,501.07

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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.