Home / 13,925.85-19,218.06-7,875.63

Finding the Fourth Proportional to 13,925.85, 19,218.06 and 7,875.63

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Solution

The fourth proportional to 13,925.85, 19,218.06 and 7,875.63 is: 10,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.85 : 19,218.06 = 7,875.63 : x
  2. Step 2: Convert to fraction form
    13,925.85/19,218.06 = 7,875.63/x
  3. Step 3: Cross multiply
    13,925.85x = 19,218.06 × 7,875.63
  4. Step 4: Simplify right side
    13,925.85x = 151,354,329.88
  5. Step 5: Solve for x
    x = 151,354,329.88/13,925.85
  6. Step 6: Final answer
    x = 10,868.59

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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.