Home / 15,533.55-21,440.16-9,570.33

Finding the Fourth Proportional to 15,533.55, 21,440.16 and 9,570.33

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Solution

The fourth proportional to 15,533.55, 21,440.16 and 9,570.33 is: 13,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.55 : 21,440.16 = 9,570.33 : x
  2. Step 2: Convert to fraction form
    15,533.55/21,440.16 = 9,570.33/x
  3. Step 3: Cross multiply
    15,533.55x = 21,440.16 × 9,570.33
  4. Step 4: Simplify right side
    15,533.55x = 205,189,251.40
  5. Step 5: Solve for x
    x = 205,189,251.40/15,533.55
  6. Step 6: Final answer
    x = 13,209.43

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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.