Home / 15,613.48-21,544.78-9,240.35

Finding the Fourth Proportional to 15,613.48, 21,544.78 and 9,240.35

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Solution

The fourth proportional to 15,613.48, 21,544.78 and 9,240.35 is: 12,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.48 : 21,544.78 = 9,240.35 : x
  2. Step 2: Convert to fraction form
    15,613.48/21,544.78 = 9,240.35/x
  3. Step 3: Cross multiply
    15,613.48x = 21,544.78 × 9,240.35
  4. Step 4: Simplify right side
    15,613.48x = 199,081,223.25
  5. Step 5: Solve for x
    x = 199,081,223.25/15,613.48
  6. Step 6: Final answer
    x = 12,750.60

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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.