Home / 10,386.14-14,332.86-6,409.55

Finding the Fourth Proportional to 10,386.14, 14,332.86 and 6,409.55

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Solution

The fourth proportional to 10,386.14, 14,332.86 and 6,409.55 is: 8,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.14 : 14,332.86 = 6,409.55 : x
  2. Step 2: Convert to fraction form
    10,386.14/14,332.86 = 6,409.55/x
  3. Step 3: Cross multiply
    10,386.14x = 14,332.86 × 6,409.55
  4. Step 4: Simplify right side
    10,386.14x = 91,867,111.15
  5. Step 5: Solve for x
    x = 91,867,111.15/10,386.14
  6. Step 6: Final answer
    x = 8,845.17

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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.