Home / 15,440.36-21,296.45-9,776.03

Finding the Fourth Proportional to 15,440.36, 21,296.45 and 9,776.03

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Solution

The fourth proportional to 15,440.36, 21,296.45 and 9,776.03 is: 13,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.36 : 21,296.45 = 9,776.03 : x
  2. Step 2: Convert to fraction form
    15,440.36/21,296.45 = 9,776.03/x
  3. Step 3: Cross multiply
    15,440.36x = 21,296.45 × 9,776.03
  4. Step 4: Simplify right side
    15,440.36x = 208,194,685.21
  5. Step 5: Solve for x
    x = 208,194,685.21/15,440.36
  6. Step 6: Final answer
    x = 13,483.80

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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.