Home / 14,089.14-19,430.28-8,784.45

Finding the Fourth Proportional to 14,089.14, 19,430.28 and 8,784.45

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Solution

The fourth proportional to 14,089.14, 19,430.28 and 8,784.45 is: 12,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.14 : 19,430.28 = 8,784.45 : x
  2. Step 2: Convert to fraction form
    14,089.14/19,430.28 = 8,784.45/x
  3. Step 3: Cross multiply
    14,089.14x = 19,430.28 × 8,784.45
  4. Step 4: Simplify right side
    14,089.14x = 170,684,323.15
  5. Step 5: Solve for x
    x = 170,684,323.15/14,089.14
  6. Step 6: Final answer
    x = 12,114.60

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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.