Home / 14,098.40-21,123.30-6,686.90

Finding the Fourth Proportional to 14,098.40, 21,123.30 and 6,686.90

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Solution

The fourth proportional to 14,098.40, 21,123.30 and 6,686.90 is: 10,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,098.40 : 21,123.30 = 6,686.90 : x
  2. Step 2: Convert to fraction form
    14,098.40/21,123.30 = 6,686.90/x
  3. Step 3: Cross multiply
    14,098.40x = 21,123.30 × 6,686.90
  4. Step 4: Simplify right side
    14,098.40x = 141,249,394.77
  5. Step 5: Solve for x
    x = 141,249,394.77/14,098.40
  6. Step 6: Final answer
    x = 10,018.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.