Home / 9,678.51-13,357.29-5,700.87

Finding the Fourth Proportional to 9,678.51, 13,357.29 and 5,700.87

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Solution

The fourth proportional to 9,678.51, 13,357.29 and 5,700.87 is: 7,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.51 : 13,357.29 = 5,700.87 : x
  2. Step 2: Convert to fraction form
    9,678.51/13,357.29 = 5,700.87/x
  3. Step 3: Cross multiply
    9,678.51x = 13,357.29 × 5,700.87
  4. Step 4: Simplify right side
    9,678.51x = 76,148,173.84
  5. Step 5: Solve for x
    x = 76,148,173.84/9,678.51
  6. Step 6: Final answer
    x = 7,867.76

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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.