Home / 14,287.18-21,430.95-4,426.42

Finding the Fourth Proportional to 14,287.18, 21,430.95 and 4,426.42

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Solution

The fourth proportional to 14,287.18, 21,430.95 and 4,426.42 is: 6,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.18 : 21,430.95 = 4,426.42 : x
  2. Step 2: Convert to fraction form
    14,287.18/21,430.95 = 4,426.42/x
  3. Step 3: Cross multiply
    14,287.18x = 21,430.95 × 4,426.42
  4. Step 4: Simplify right side
    14,287.18x = 94,862,385.70
  5. Step 5: Solve for x
    x = 94,862,385.70/14,287.18
  6. Step 6: Final answer
    x = 6,639.69

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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.