Home / 14,288.60-19,721.88-9,516.49

Finding the Fourth Proportional to 14,288.60, 19,721.88 and 9,516.49

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Solution

The fourth proportional to 14,288.60, 19,721.88 and 9,516.49 is: 13,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.60 : 19,721.88 = 9,516.49 : x
  2. Step 2: Convert to fraction form
    14,288.60/19,721.88 = 9,516.49/x
  3. Step 3: Cross multiply
    14,288.60x = 19,721.88 × 9,516.49
  4. Step 4: Simplify right side
    14,288.60x = 187,683,024.50
  5. Step 5: Solve for x
    x = 187,683,024.50/14,288.60
  6. Step 6: Final answer
    x = 13,135.16

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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.