Home / 10,416.64-15,549.40-9,645.84

Finding the Fourth Proportional to 10,416.64, 15,549.40 and 9,645.84

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Solution

The fourth proportional to 10,416.64, 15,549.40 and 9,645.84 is: 14,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.64 : 15,549.40 = 9,645.84 : x
  2. Step 2: Convert to fraction form
    10,416.64/15,549.40 = 9,645.84/x
  3. Step 3: Cross multiply
    10,416.64x = 15,549.40 × 9,645.84
  4. Step 4: Simplify right side
    10,416.64x = 149,987,024.50
  5. Step 5: Solve for x
    x = 149,987,024.50/10,416.64
  6. Step 6: Final answer
    x = 14,398.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.