Home / 10,390.36-14,339.28-5,675.08

Finding the Fourth Proportional to 10,390.36, 14,339.28 and 5,675.08

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Solution

The fourth proportional to 10,390.36, 14,339.28 and 5,675.08 is: 7,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.36 : 14,339.28 = 5,675.08 : x
  2. Step 2: Convert to fraction form
    10,390.36/14,339.28 = 5,675.08/x
  3. Step 3: Cross multiply
    10,390.36x = 14,339.28 × 5,675.08
  4. Step 4: Simplify right side
    10,390.36x = 81,376,561.14
  5. Step 5: Solve for x
    x = 81,376,561.14/10,390.36
  6. Step 6: Final answer
    x = 7,831.93

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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.