Home / 14,421.24-19,890.36-10,455.48

Finding the Fourth Proportional to 14,421.24, 19,890.36 and 10,455.48

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Solution

The fourth proportional to 14,421.24, 19,890.36 and 10,455.48 is: 14,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.24 : 19,890.36 = 10,455.48 : x
  2. Step 2: Convert to fraction form
    14,421.24/19,890.36 = 10,455.48/x
  3. Step 3: Cross multiply
    14,421.24x = 19,890.36 × 10,455.48
  4. Step 4: Simplify right side
    14,421.24x = 207,963,261.17
  5. Step 5: Solve for x
    x = 207,963,261.17/14,421.24
  6. Step 6: Final answer
    x = 14,420.62

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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.