Home / 15,743.04-21,712.48-11,489.32

Finding the Fourth Proportional to 15,743.04, 21,712.48 and 11,489.32

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Solution

The fourth proportional to 15,743.04, 21,712.48 and 11,489.32 is: 15,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.04 : 21,712.48 = 11,489.32 : x
  2. Step 2: Convert to fraction form
    15,743.04/21,712.48 = 11,489.32/x
  3. Step 3: Cross multiply
    15,743.04x = 21,712.48 × 11,489.32
  4. Step 4: Simplify right side
    15,743.04x = 249,461,630.71
  5. Step 5: Solve for x
    x = 249,461,630.71/15,743.04
  6. Step 6: Final answer
    x = 15,845.84

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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.