Home / 11,389.68-15,637.50-10,698.48

Finding the Fourth Proportional to 11,389.68, 15,637.50 and 10,698.48

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Solution

The fourth proportional to 11,389.68, 15,637.50 and 10,698.48 is: 14,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.68 : 15,637.50 = 10,698.48 : x
  2. Step 2: Convert to fraction form
    11,389.68/15,637.50 = 10,698.48/x
  3. Step 3: Cross multiply
    11,389.68x = 15,637.50 × 10,698.48
  4. Step 4: Simplify right side
    11,389.68x = 167,297,481
  5. Step 5: Solve for x
    x = 167,297,481/11,389.68
  6. Step 6: Final answer
    x = 14,688.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.