Home / 14,409.04-19,886.16-9,931.36

Finding the Fourth Proportional to 14,409.04, 19,886.16 and 9,931.36

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Solution

The fourth proportional to 14,409.04, 19,886.16 and 9,931.36 is: 13,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.04 : 19,886.16 = 9,931.36 : x
  2. Step 2: Convert to fraction form
    14,409.04/19,886.16 = 9,931.36/x
  3. Step 3: Cross multiply
    14,409.04x = 19,886.16 × 9,931.36
  4. Step 4: Simplify right side
    14,409.04x = 197,496,613.98
  5. Step 5: Solve for x
    x = 197,496,613.98/14,409.04
  6. Step 6: Final answer
    x = 13,706.44

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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.