Home / 11,358.61-15,673.85-6,642.07

Finding the Fourth Proportional to 11,358.61, 15,673.85 and 6,642.07

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Solution

The fourth proportional to 11,358.61, 15,673.85 and 6,642.07 is: 9,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.61 : 15,673.85 = 6,642.07 : x
  2. Step 2: Convert to fraction form
    11,358.61/15,673.85 = 6,642.07/x
  3. Step 3: Cross multiply
    11,358.61x = 15,673.85 × 6,642.07
  4. Step 4: Simplify right side
    11,358.61x = 104,106,775.66
  5. Step 5: Solve for x
    x = 104,106,775.66/11,358.61
  6. Step 6: Final answer
    x = 9,165.45

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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.