Home / 12,969.24-19,403.29-9,858.25

Finding the Fourth Proportional to 12,969.24, 19,403.29 and 9,858.25

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Solution

The fourth proportional to 12,969.24, 19,403.29 and 9,858.25 is: 14,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969.24 : 19,403.29 = 9,858.25 : x
  2. Step 2: Convert to fraction form
    12,969.24/19,403.29 = 9,858.25/x
  3. Step 3: Cross multiply
    12,969.24x = 19,403.29 × 9,858.25
  4. Step 4: Simplify right side
    12,969.24x = 191,282,483.64
  5. Step 5: Solve for x
    x = 191,282,483.64/12,969.24
  6. Step 6: Final answer
    x = 14,748.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.