Home / 14,421.40-19,898.06-9,943.72

Finding the Fourth Proportional to 14,421.40, 19,898.06 and 9,943.72

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Solution

The fourth proportional to 14,421.40, 19,898.06 and 9,943.72 is: 13,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.40 : 19,898.06 = 9,943.72 : x
  2. Step 2: Convert to fraction form
    14,421.40/19,898.06 = 9,943.72/x
  3. Step 3: Cross multiply
    14,421.40x = 19,898.06 × 9,943.72
  4. Step 4: Simplify right side
    14,421.40x = 197,860,737.18
  5. Step 5: Solve for x
    x = 197,860,737.18/14,421.40
  6. Step 6: Final answer
    x = 13,719.94

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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.