Home / 19,862.89-29,779.90-9,327.49

Finding the Fourth Proportional to 19,862.89, 29,779.90 and 9,327.49

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Solution

The fourth proportional to 19,862.89, 29,779.90 and 9,327.49 is: 13,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.89 : 29,779.90 = 9,327.49 : x
  2. Step 2: Convert to fraction form
    19,862.89/29,779.90 = 9,327.49/x
  3. Step 3: Cross multiply
    19,862.89x = 29,779.90 × 9,327.49
  4. Step 4: Simplify right side
    19,862.89x = 277,771,621.68
  5. Step 5: Solve for x
    x = 277,771,621.68/19,862.89
  6. Step 6: Final answer
    x = 13,984.45

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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.