Home / 19,119.05-26,384.60-10,621.72

Finding the Fourth Proportional to 19,119.05, 26,384.60 and 10,621.72

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Solution

The fourth proportional to 19,119.05, 26,384.60 and 10,621.72 is: 14,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.05 : 26,384.60 = 10,621.72 : x
  2. Step 2: Convert to fraction form
    19,119.05/26,384.60 = 10,621.72/x
  3. Step 3: Cross multiply
    19,119.05x = 26,384.60 × 10,621.72
  4. Step 4: Simplify right side
    19,119.05x = 280,249,833.51
  5. Step 5: Solve for x
    x = 280,249,833.51/19,119.05
  6. Step 6: Final answer
    x = 14,658.15

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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.