Home / 19,313.36-26,653.92-10,931.12

Finding the Fourth Proportional to 19,313.36, 26,653.92 and 10,931.12

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Solution

The fourth proportional to 19,313.36, 26,653.92 and 10,931.12 is: 15,085.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.36 : 26,653.92 = 10,931.12 : x
  2. Step 2: Convert to fraction form
    19,313.36/26,653.92 = 10,931.12/x
  3. Step 3: Cross multiply
    19,313.36x = 26,653.92 × 10,931.12
  4. Step 4: Simplify right side
    19,313.36x = 291,357,197.99
  5. Step 5: Solve for x
    x = 291,357,197.99/19,313.36
  6. Step 6: Final answer
    x = 15,085.79

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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.