Home / 15,570.36-21,487.14-9,282.60

Finding the Fourth Proportional to 15,570.36, 21,487.14 and 9,282.60

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Solution

The fourth proportional to 15,570.36, 21,487.14 and 9,282.60 is: 12,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.36 : 21,487.14 = 9,282.60 : x
  2. Step 2: Convert to fraction form
    15,570.36/21,487.14 = 9,282.60/x
  3. Step 3: Cross multiply
    15,570.36x = 21,487.14 × 9,282.60
  4. Step 4: Simplify right side
    15,570.36x = 199,456,525.76
  5. Step 5: Solve for x
    x = 199,456,525.76/15,570.36
  6. Step 6: Final answer
    x = 12,810.01

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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.