Home / 19,645.34-29,460.65-9,779.40

Finding the Fourth Proportional to 19,645.34, 29,460.65 and 9,779.40

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Solution

The fourth proportional to 19,645.34, 29,460.65 and 9,779.40 is: 14,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.34 : 29,460.65 = 9,779.40 : x
  2. Step 2: Convert to fraction form
    19,645.34/29,460.65 = 9,779.40/x
  3. Step 3: Cross multiply
    19,645.34x = 29,460.65 × 9,779.40
  4. Step 4: Simplify right side
    19,645.34x = 288,107,431.71
  5. Step 5: Solve for x
    x = 288,107,431.71/19,645.34
  6. Step 6: Final answer
    x = 14,665.44

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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.