Home / 15,743.04-21,725.40-9,455.40

Finding the Fourth Proportional to 15,743.04, 21,725.40 and 9,455.40

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Solution

The fourth proportional to 15,743.04, 21,725.40 and 9,455.40 is: 13,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.04 : 21,725.40 = 9,455.40 : x
  2. Step 2: Convert to fraction form
    15,743.04/21,725.40 = 9,455.40/x
  3. Step 3: Cross multiply
    15,743.04x = 21,725.40 × 9,455.40
  4. Step 4: Simplify right side
    15,743.04x = 205,422,347.16
  5. Step 5: Solve for x
    x = 205,422,347.16/15,743.04
  6. Step 6: Final answer
    x = 13,048.45

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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.