Home / 15,469.55-21,365.40-10,454.51

Finding the Fourth Proportional to 15,469.55, 21,365.40 and 10,454.51

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Solution

The fourth proportional to 15,469.55, 21,365.40 and 10,454.51 is: 14,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.55 : 21,365.40 = 10,454.51 : x
  2. Step 2: Convert to fraction form
    15,469.55/21,365.40 = 10,454.51/x
  3. Step 3: Cross multiply
    15,469.55x = 21,365.40 × 10,454.51
  4. Step 4: Simplify right side
    15,469.55x = 223,364,681.13
  5. Step 5: Solve for x
    x = 223,364,681.13/15,469.55
  6. Step 6: Final answer
    x = 14,438.99

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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.