Home / 10,130.08-13,948.32-8,634.64

Finding the Fourth Proportional to 10,130.08, 13,948.32 and 8,634.64

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Solution

The fourth proportional to 10,130.08, 13,948.32 and 8,634.64 is: 11,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.08 : 13,948.32 = 8,634.64 : x
  2. Step 2: Convert to fraction form
    10,130.08/13,948.32 = 8,634.64/x
  3. Step 3: Cross multiply
    10,130.08x = 13,948.32 × 8,634.64
  4. Step 4: Simplify right side
    10,130.08x = 120,438,721.80
  5. Step 5: Solve for x
    x = 120,438,721.80/10,130.08
  6. Step 6: Final answer
    x = 11,889.22

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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.