Home / 8,646.17-11,931.84-5,109.71

Finding the Fourth Proportional to 8,646.17, 11,931.84 and 5,109.71

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Solution

The fourth proportional to 8,646.17, 11,931.84 and 5,109.71 is: 7,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.17 : 11,931.84 = 5,109.71 : x
  2. Step 2: Convert to fraction form
    8,646.17/11,931.84 = 5,109.71/x
  3. Step 3: Cross multiply
    8,646.17x = 11,931.84 × 5,109.71
  4. Step 4: Simplify right side
    8,646.17x = 60,968,182.51
  5. Step 5: Solve for x
    x = 60,968,182.51/8,646.17
  6. Step 6: Final answer
    x = 7,051.47

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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.