Home / 14,334.16-19,779.40-8,045.20

Finding the Fourth Proportional to 14,334.16, 19,779.40 and 8,045.20

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Solution

The fourth proportional to 14,334.16, 19,779.40 and 8,045.20 is: 11,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,334.16 : 19,779.40 = 8,045.20 : x
  2. Step 2: Convert to fraction form
    14,334.16/19,779.40 = 8,045.20/x
  3. Step 3: Cross multiply
    14,334.16x = 19,779.40 × 8,045.20
  4. Step 4: Simplify right side
    14,334.16x = 159,129,228.88
  5. Step 5: Solve for x
    x = 159,129,228.88/14,334.16
  6. Step 6: Final answer
    x = 11,101.40

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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.