Home / 15,424.99-21,282-10,394.89

Finding the Fourth Proportional to 15,424.99, 21,282 and 10,394.89

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Solution

The fourth proportional to 15,424.99, 21,282 and 10,394.89 is: 14,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.99 : 21,282 = 10,394.89 : x
  2. Step 2: Convert to fraction form
    15,424.99/21,282 = 10,394.89/x
  3. Step 3: Cross multiply
    15,424.99x = 21,282 × 10,394.89
  4. Step 4: Simplify right side
    15,424.99x = 221,224,048.98
  5. Step 5: Solve for x
    x = 221,224,048.98/15,424.99
  6. Step 6: Final answer
    x = 14,341.92

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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.