Home / 14,282.90-19,709.93-7,909.75

Finding the Fourth Proportional to 14,282.90, 19,709.93 and 7,909.75

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Solution

The fourth proportional to 14,282.90, 19,709.93 and 7,909.75 is: 10,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.90 : 19,709.93 = 7,909.75 : x
  2. Step 2: Convert to fraction form
    14,282.90/19,709.93 = 7,909.75/x
  3. Step 3: Cross multiply
    14,282.90x = 19,709.93 × 7,909.75
  4. Step 4: Simplify right side
    14,282.90x = 155,900,663.23
  5. Step 5: Solve for x
    x = 155,900,663.23/14,282.90
  6. Step 6: Final answer
    x = 10,915.20

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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.