Home / 15,491.28-21,384.51-10,462.32

Finding the Fourth Proportional to 15,491.28, 21,384.51 and 10,462.32

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Solution

The fourth proportional to 15,491.28, 21,384.51 and 10,462.32 is: 14,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.28 : 21,384.51 = 10,462.32 : x
  2. Step 2: Convert to fraction form
    15,491.28/21,384.51 = 10,462.32/x
  3. Step 3: Cross multiply
    15,491.28x = 21,384.51 × 10,462.32
  4. Step 4: Simplify right side
    15,491.28x = 223,731,586.66
  5. Step 5: Solve for x
    x = 223,731,586.66/15,491.28
  6. Step 6: Final answer
    x = 14,442.42

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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.