Home / 10,904.64-15,051.28-6,716.40

Finding the Fourth Proportional to 10,904.64, 15,051.28 and 6,716.40

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Solution

The fourth proportional to 10,904.64, 15,051.28 and 6,716.40 is: 9,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.64 : 15,051.28 = 6,716.40 : x
  2. Step 2: Convert to fraction form
    10,904.64/15,051.28 = 6,716.40/x
  3. Step 3: Cross multiply
    10,904.64x = 15,051.28 × 6,716.40
  4. Step 4: Simplify right side
    10,904.64x = 101,090,416.99
  5. Step 5: Solve for x
    x = 101,090,416.99/10,904.64
  6. Step 6: Final answer
    x = 9,270.40

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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.