Home / 13,677.01-18,875.31-7,709.24

Finding the Fourth Proportional to 13,677.01, 18,875.31 and 7,709.24

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Solution

The fourth proportional to 13,677.01, 18,875.31 and 7,709.24 is: 10,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.01 : 18,875.31 = 7,709.24 : x
  2. Step 2: Convert to fraction form
    13,677.01/18,875.31 = 7,709.24/x
  3. Step 3: Cross multiply
    13,677.01x = 18,875.31 × 7,709.24
  4. Step 4: Simplify right side
    13,677.01x = 145,514,294.86
  5. Step 5: Solve for x
    x = 145,514,294.86/13,677.01
  6. Step 6: Final answer
    x = 10,639.34

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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.