Home / 7,831.47-10,807.54-4,294.45

Finding the Fourth Proportional to 7,831.47, 10,807.54 and 4,294.45

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Solution

The fourth proportional to 7,831.47, 10,807.54 and 4,294.45 is: 5,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.47 : 10,807.54 = 4,294.45 : x
  2. Step 2: Convert to fraction form
    7,831.47/10,807.54 = 4,294.45/x
  3. Step 3: Cross multiply
    7,831.47x = 10,807.54 × 4,294.45
  4. Step 4: Simplify right side
    7,831.47x = 46,412,402.40
  5. Step 5: Solve for x
    x = 46,412,402.40/7,831.47
  6. Step 6: Final answer
    x = 5,926.40

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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.