Home / 19,779.60-27,296.59-11,283.10

Finding the Fourth Proportional to 19,779.60, 27,296.59 and 11,283.10

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Solution

The fourth proportional to 19,779.60, 27,296.59 and 11,283.10 is: 15,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.60 : 27,296.59 = 11,283.10 : x
  2. Step 2: Convert to fraction form
    19,779.60/27,296.59 = 11,283.10/x
  3. Step 3: Cross multiply
    19,779.60x = 27,296.59 × 11,283.10
  4. Step 4: Simplify right side
    19,779.60x = 307,990,154.63
  5. Step 5: Solve for x
    x = 307,990,154.63/19,779.60
  6. Step 6: Final answer
    x = 15,571.10

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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.