Home / 14,142.04-19,516.98-7,854.28

Finding the Fourth Proportional to 14,142.04, 19,516.98 and 7,854.28

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Solution

The fourth proportional to 14,142.04, 19,516.98 and 7,854.28 is: 10,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.04 : 19,516.98 = 7,854.28 : x
  2. Step 2: Convert to fraction form
    14,142.04/19,516.98 = 7,854.28/x
  3. Step 3: Cross multiply
    14,142.04x = 19,516.98 × 7,854.28
  4. Step 4: Simplify right side
    14,142.04x = 153,291,825.67
  5. Step 5: Solve for x
    x = 153,291,825.67/14,142.04
  6. Step 6: Final answer
    x = 10,839.44

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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.