Home / 15,580.80-21,501.36-9,610.08

Finding the Fourth Proportional to 15,580.80, 21,501.36 and 9,610.08

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Solution

The fourth proportional to 15,580.80, 21,501.36 and 9,610.08 is: 13,261.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.80 : 21,501.36 = 9,610.08 : x
  2. Step 2: Convert to fraction form
    15,580.80/21,501.36 = 9,610.08/x
  3. Step 3: Cross multiply
    15,580.80x = 21,501.36 × 9,610.08
  4. Step 4: Simplify right side
    15,580.80x = 206,629,789.71
  5. Step 5: Solve for x
    x = 206,629,789.71/15,580.80
  6. Step 6: Final answer
    x = 13,261.82

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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.