Home / 15,619.48-21,565.56-11,587.36

Finding the Fourth Proportional to 15,619.48, 21,565.56 and 11,587.36

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Solution

The fourth proportional to 15,619.48, 21,565.56 and 11,587.36 is: 15,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.48 : 21,565.56 = 11,587.36 : x
  2. Step 2: Convert to fraction form
    15,619.48/21,565.56 = 11,587.36/x
  3. Step 3: Cross multiply
    15,619.48x = 21,565.56 × 11,587.36
  4. Step 4: Simplify right side
    15,619.48x = 249,887,907.32
  5. Step 5: Solve for x
    x = 249,887,907.32/15,619.48
  6. Step 6: Final answer
    x = 15,998.48

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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.