Home / 19,135.47-26,407.32-10,638.30

Finding the Fourth Proportional to 19,135.47, 26,407.32 and 10,638.30

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Solution

The fourth proportional to 19,135.47, 26,407.32 and 10,638.30 is: 14,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.47 : 26,407.32 = 10,638.30 : x
  2. Step 2: Convert to fraction form
    19,135.47/26,407.32 = 10,638.30/x
  3. Step 3: Cross multiply
    19,135.47x = 26,407.32 × 10,638.30
  4. Step 4: Simplify right side
    19,135.47x = 280,928,992.36
  5. Step 5: Solve for x
    x = 280,928,992.36/19,135.47
  6. Step 6: Final answer
    x = 14,681.06

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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.