Home / 10,445.80-15,667.98-4,900.39

Finding the Fourth Proportional to 10,445.80, 15,667.98 and 4,900.39

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Solution

The fourth proportional to 10,445.80, 15,667.98 and 4,900.39 is: 7,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.80 : 15,667.98 = 4,900.39 : x
  2. Step 2: Convert to fraction form
    10,445.80/15,667.98 = 4,900.39/x
  3. Step 3: Cross multiply
    10,445.80x = 15,667.98 × 4,900.39
  4. Step 4: Simplify right side
    10,445.80x = 76,779,212.51
  5. Step 5: Solve for x
    x = 76,779,212.51/10,445.80
  6. Step 6: Final answer
    x = 7,350.25

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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.