Home / 19,215.90-28,771.74-9,962.46

Finding the Fourth Proportional to 19,215.90, 28,771.74 and 9,962.46

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Solution

The fourth proportional to 19,215.90, 28,771.74 and 9,962.46 is: 14,916.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.90 : 28,771.74 = 9,962.46 : x
  2. Step 2: Convert to fraction form
    19,215.90/28,771.74 = 9,962.46/x
  3. Step 3: Cross multiply
    19,215.90x = 28,771.74 × 9,962.46
  4. Step 4: Simplify right side
    19,215.90x = 286,637,308.88
  5. Step 5: Solve for x
    x = 286,637,308.88/19,215.90
  6. Step 6: Final answer
    x = 14,916.67

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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.