Home / 7,831.29-10,807.52-4,686.87

Finding the Fourth Proportional to 7,831.29, 10,807.52 and 4,686.87

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Solution

The fourth proportional to 7,831.29, 10,807.52 and 4,686.87 is: 6,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.29 : 10,807.52 = 4,686.87 : x
  2. Step 2: Convert to fraction form
    7,831.29/10,807.52 = 4,686.87/x
  3. Step 3: Cross multiply
    7,831.29x = 10,807.52 × 4,686.87
  4. Step 4: Simplify right side
    7,831.29x = 50,653,441.26
  5. Step 5: Solve for x
    x = 50,653,441.26/7,831.29
  6. Step 6: Final answer
    x = 6,468.08

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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.