Home / 10,322.63-15,502.13-7,690.85

Finding the Fourth Proportional to 10,322.63, 15,502.13 and 7,690.85

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Solution

The fourth proportional to 10,322.63, 15,502.13 and 7,690.85 is: 11,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,322.63 : 15,502.13 = 7,690.85 : x
  2. Step 2: Convert to fraction form
    10,322.63/15,502.13 = 7,690.85/x
  3. Step 3: Cross multiply
    10,322.63x = 15,502.13 × 7,690.85
  4. Step 4: Simplify right side
    10,322.63x = 119,224,556.51
  5. Step 5: Solve for x
    x = 119,224,556.51/10,322.63
  6. Step 6: Final answer
    x = 11,549.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.