Home / 15,412.54-21,248.13-9,744.45

Finding the Fourth Proportional to 15,412.54, 21,248.13 and 9,744.45

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Solution

The fourth proportional to 15,412.54, 21,248.13 and 9,744.45 is: 13,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.54 : 21,248.13 = 9,744.45 : x
  2. Step 2: Convert to fraction form
    15,412.54/21,248.13 = 9,744.45/x
  3. Step 3: Cross multiply
    15,412.54x = 21,248.13 × 9,744.45
  4. Step 4: Simplify right side
    15,412.54x = 207,051,368.80
  5. Step 5: Solve for x
    x = 207,051,368.80/15,412.54
  6. Step 6: Final answer
    x = 13,433.95

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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.